21023392

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 45119592

約数和(自身を除く): 24096200

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 194, 208, 388, 416, 521, 776, 1042, 1261, 1552, 2084, 2522, 3104, 4168, 5044, 6773, 8336, 10088, 13546, 16672, 20176, 27092, 40352, 50537, 54184, 101074, 108368, 202148, 216736, 404296, 656981, 808592, 1313962, 1617184, 2627924, 5255848, 10511696, 21023392]

約数ペア:

[(1, 21023392), (2, 10511696), (4, 5255848), (8, 2627924), (13, 1617184), (16, 1313962), (26, 808592), (32, 656981), (52, 404296), (97, 216736), (104, 202148), (194, 108368), (208, 101074), (388, 54184), (416, 50537), (521, 40352), (776, 27092), (1042, 20176), (1261, 16672), (1552, 13546), (2084, 10088), (2522, 8336), (3104, 6773), (4168, 5044)]