21246940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:92

約数の個数: 192

約数和(自身を含む): 60963840

約数和(自身を除く): 39716900

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 19, 20, 22, 23, 26, 34, 38, 44, 46, 52, 55, 65, 68, 76, 85, 92, 95, 110, 115, 130, 143, 170, 187, 190, 209, 220, 221, 230, 247, 253, 260, 286, 299, 323, 340, 374, 380, 391, 418, 437, 442, 460, 494, 506, 572, 598, 646, 715, 748, 782, 836, 874, 884, 935, 988, 1012, 1045, 1105, 1196, 1235, 1265, 1292, 1430, 1495, 1564, 1615, 1748, 1870, 1955, 2090, 2185, 2210, 2431, 2470, 2530, 2717, 2860, 2990, 3230, 3289, 3553, 3740, 3910, 4180, 4199, 4301, 4370, 4420, 4807, 4862, 4940, 5060, 5083, 5434, 5681, 5980, 6460, 6578, 7106, 7429, 7820, 8398, 8602, 8740, 9614, 9724, 10166, 10868, 11362, 12155, 13156, 13585, 14212, 14858, 16445, 16796, 17204, 17765, 19228, 20332, 20995, 21505, 22724, 24035, 24310, 25415, 27170, 28405, 29716, 32890, 35530, 37145, 41990, 43010, 46189, 48070, 48620, 50830, 54340, 55913, 56810, 62491, 65780, 71060, 74290, 81719, 83980, 86020, 92378, 96140, 96577, 101660, 111826, 113620, 124982, 148580, 163438, 184756, 193154, 223652, 230945, 249964, 279565, 312455, 326876, 386308, 408595, 461890, 482885, 559130, 624910, 817190, 923780, 965770, 1062347, 1118260, 1249820, 1634380, 1931540, 2124694, 4249388, 5311735, 10623470, 21246940]

約数ペア:

[(1, 21246940), (2, 10623470), (4, 5311735), (5, 4249388), (10, 2124694), (11, 1931540), (13, 1634380), (17, 1249820), (19, 1118260), (20, 1062347), (22, 965770), (23, 923780), (26, 817190), (34, 624910), (38, 559130), (44, 482885), (46, 461890), (52, 408595), (55, 386308), (65, 326876), (68, 312455), (76, 279565), (85, 249964), (92, 230945), (95, 223652), (110, 193154), (115, 184756), (130, 163438), (143, 148580), (170, 124982), (187, 113620), (190, 111826), (209, 101660), (220, 96577), (221, 96140), (230, 92378), (247, 86020), (253, 83980), (260, 81719), (286, 74290), (299, 71060), (323, 65780), (340, 62491), (374, 56810), (380, 55913), (391, 54340), (418, 50830), (437, 48620), (442, 48070), (460, 46189), (494, 43010), (506, 41990), (572, 37145), (598, 35530), (646, 32890), (715, 29716), (748, 28405), (782, 27170), (836, 25415), (874, 24310), (884, 24035), (935, 22724), (988, 21505), (1012, 20995), (1045, 20332), (1105, 19228), (1196, 17765), (1235, 17204), (1265, 16796), (1292, 16445), (1430, 14858), (1495, 14212), (1564, 13585), (1615, 13156), (1748, 12155), (1870, 11362), (1955, 10868), (2090, 10166), (2185, 9724), (2210, 9614), (2431, 8740), (2470, 8602), (2530, 8398), (2717, 7820), (2860, 7429), (2990, 7106), (3230, 6578), (3289, 6460), (3553, 5980), (3740, 5681), (3910, 5434), (4180, 5083), (4199, 5060), (4301, 4940), (4370, 4862), (4420, 4807)]