20912944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3467}}^1$

素因数の和:3517

約数の個数: 40

約数和(自身を含む): 45153360

約数和(自身を除く): 24240416

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 208, 232, 377, 464, 754, 1508, 3016, 3467, 6032, 6934, 13868, 27736, 45071, 55472, 90142, 100543, 180284, 201086, 360568, 402172, 721136, 804344, 1307059, 1608688, 2614118, 5228236, 10456472, 20912944]

約数ペア:

[(1, 20912944), (2, 10456472), (4, 5228236), (8, 2614118), (13, 1608688), (16, 1307059), (26, 804344), (29, 721136), (52, 402172), (58, 360568), (104, 201086), (116, 180284), (208, 100543), (232, 90142), (377, 55472), (464, 45071), (754, 27736), (1508, 13868), (3016, 6934), (3467, 6032)]