21251490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1879}}^1$

素因数の和:1931

約数の個数: 64

約数和(自身を含む): 56851200

約数和(自身を除く): 35599710

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 29, 30, 39, 58, 65, 78, 87, 130, 145, 174, 195, 290, 377, 390, 435, 754, 870, 1131, 1879, 1885, 2262, 3758, 3770, 5637, 5655, 9395, 11274, 11310, 18790, 24427, 28185, 48854, 54491, 56370, 73281, 108982, 122135, 146562, 163473, 244270, 272455, 326946, 366405, 544910, 708383, 732810, 817365, 1416766, 1634730, 2125149, 3541915, 4250298, 7083830, 10625745, 21251490]

約数ペア:

[(1, 21251490), (2, 10625745), (3, 7083830), (5, 4250298), (6, 3541915), (10, 2125149), (13, 1634730), (15, 1416766), (26, 817365), (29, 732810), (30, 708383), (39, 544910), (58, 366405), (65, 326946), (78, 272455), (87, 244270), (130, 163473), (145, 146562), (174, 122135), (195, 108982), (290, 73281), (377, 56370), (390, 54491), (435, 48854), (754, 28185), (870, 24427), (1131, 18790), (1879, 11310), (1885, 11274), (2262, 9395), (3758, 5655), (3770, 5637)]