21198320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:163

約数の個数: 160

約数和(自身を含む): 61871040

約数和(自身を除く): 40672720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 80, 85, 88, 104, 109, 110, 130, 136, 143, 170, 176, 187, 208, 218, 220, 221, 260, 272, 286, 340, 374, 436, 440, 442, 520, 545, 572, 680, 715, 748, 872, 880, 884, 935, 1040, 1090, 1105, 1144, 1199, 1360, 1417, 1430, 1496, 1744, 1768, 1853, 1870, 2180, 2210, 2288, 2398, 2431, 2834, 2860, 2992, 3536, 3706, 3740, 4360, 4420, 4796, 4862, 5668, 5720, 5995, 7085, 7412, 7480, 8720, 8840, 9265, 9592, 9724, 11336, 11440, 11990, 12155, 14170, 14824, 14960, 15587, 17680, 18530, 19184, 19448, 20383, 22672, 23980, 24089, 24310, 28340, 29648, 31174, 37060, 38896, 40766, 47960, 48178, 48620, 56680, 62348, 74120, 77935, 81532, 95920, 96356, 97240, 101915, 113360, 120445, 124696, 148240, 155870, 163064, 192712, 194480, 203830, 240890, 249392, 264979, 311740, 326128, 385424, 407660, 481780, 529958, 623480, 815320, 963560, 1059916, 1246960, 1324895, 1630640, 1927120, 2119832, 2649790, 4239664, 5299580, 10599160, 21198320]

約数ペア:

[(1, 21198320), (2, 10599160), (4, 5299580), (5, 4239664), (8, 2649790), (10, 2119832), (11, 1927120), (13, 1630640), (16, 1324895), (17, 1246960), (20, 1059916), (22, 963560), (26, 815320), (34, 623480), (40, 529958), (44, 481780), (52, 407660), (55, 385424), (65, 326128), (68, 311740), (80, 264979), (85, 249392), (88, 240890), (104, 203830), (109, 194480), (110, 192712), (130, 163064), (136, 155870), (143, 148240), (170, 124696), (176, 120445), (187, 113360), (208, 101915), (218, 97240), (220, 96356), (221, 95920), (260, 81532), (272, 77935), (286, 74120), (340, 62348), (374, 56680), (436, 48620), (440, 48178), (442, 47960), (520, 40766), (545, 38896), (572, 37060), (680, 31174), (715, 29648), (748, 28340), (872, 24310), (880, 24089), (884, 23980), (935, 22672), (1040, 20383), (1090, 19448), (1105, 19184), (1144, 18530), (1199, 17680), (1360, 15587), (1417, 14960), (1430, 14824), (1496, 14170), (1744, 12155), (1768, 11990), (1853, 11440), (1870, 11336), (2180, 9724), (2210, 9592), (2288, 9265), (2398, 8840), (2431, 8720), (2834, 7480), (2860, 7412), (2992, 7085), (3536, 5995), (3706, 5720), (3740, 5668), (4360, 4862), (4420, 4796)]