21701610

素因数分解:

$2^1\times 3^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 192

約数和(自身を含む): 71136000

約数和(自身を除く): 49434390

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 37, 38, 42, 45, 49, 57, 63, 70, 74, 90, 95, 98, 105, 111, 114, 126, 133, 147, 171, 185, 190, 210, 222, 245, 259, 266, 285, 294, 315, 333, 342, 343, 370, 399, 441, 490, 518, 555, 570, 630, 665, 666, 686, 703, 735, 777, 798, 855, 882, 931, 1029, 1110, 1197, 1295, 1330, 1406, 1470, 1554, 1665, 1710, 1715, 1813, 1862, 1995, 2058, 2109, 2205, 2331, 2394, 2590, 2793, 3087, 3330, 3430, 3515, 3626, 3885, 3990, 4218, 4410, 4655, 4662, 4921, 5145, 5439, 5586, 5985, 6174, 6327, 6517, 7030, 7770, 8379, 9065, 9310, 9842, 10290, 10545, 10878, 11655, 11970, 12654, 12691, 13034, 13965, 14763, 15435, 16317, 16758, 18130, 19551, 21090, 23310, 24605, 25382, 27195, 27930, 29526, 30870, 31635, 32585, 32634, 34447, 38073, 39102, 41895, 44289, 49210, 54390, 58653, 63270, 63455, 65170, 68894, 73815, 76146, 81585, 83790, 88578, 97755, 103341, 114219, 117306, 126910, 147630, 163170, 172235, 190365, 195510, 206682, 221445, 228438, 241129, 293265, 310023, 344470, 380730, 442890, 482258, 516705, 571095, 586530, 620046, 723387, 1033410, 1142190, 1205645, 1446774, 1550115, 2170161, 2411290, 3100230, 3616935, 4340322, 7233870, 10850805, 21701610]

約数ペア:

[(1, 21701610), (2, 10850805), (3, 7233870), (5, 4340322), (6, 3616935), (7, 3100230), (9, 2411290), (10, 2170161), (14, 1550115), (15, 1446774), (18, 1205645), (19, 1142190), (21, 1033410), (30, 723387), (35, 620046), (37, 586530), (38, 571095), (42, 516705), (45, 482258), (49, 442890), (57, 380730), (63, 344470), (70, 310023), (74, 293265), (90, 241129), (95, 228438), (98, 221445), (105, 206682), (111, 195510), (114, 190365), (126, 172235), (133, 163170), (147, 147630), (171, 126910), (185, 117306), (190, 114219), (210, 103341), (222, 97755), (245, 88578), (259, 83790), (266, 81585), (285, 76146), (294, 73815), (315, 68894), (333, 65170), (342, 63455), (343, 63270), (370, 58653), (399, 54390), (441, 49210), (490, 44289), (518, 41895), (555, 39102), (570, 38073), (630, 34447), (665, 32634), (666, 32585), (686, 31635), (703, 30870), (735, 29526), (777, 27930), (798, 27195), (855, 25382), (882, 24605), (931, 23310), (1029, 21090), (1110, 19551), (1197, 18130), (1295, 16758), (1330, 16317), (1406, 15435), (1470, 14763), (1554, 13965), (1665, 13034), (1710, 12691), (1715, 12654), (1813, 11970), (1862, 11655), (1995, 10878), (2058, 10545), (2109, 10290), (2205, 9842), (2331, 9310), (2394, 9065), (2590, 8379), (2793, 7770), (3087, 7030), (3330, 6517), (3430, 6327), (3515, 6174), (3626, 5985), (3885, 5586), (3990, 5439), (4218, 5145), (4410, 4921), (4655, 4662)]