20945592

素因数分解:

$2^3\times 3^2\times {\mathrm{421}}^1\times {\mathrm{691}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 56944680

約数和(自身を除く): 35999088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 421, 691, 842, 1263, 1382, 1684, 2073, 2526, 2764, 3368, 3789, 4146, 5052, 5528, 6219, 7578, 8292, 10104, 12438, 15156, 16584, 24876, 30312, 49752, 290911, 581822, 872733, 1163644, 1745466, 2327288, 2618199, 3490932, 5236398, 6981864, 10472796, 20945592]

約数ペア:

[(1, 20945592), (2, 10472796), (3, 6981864), (4, 5236398), (6, 3490932), (8, 2618199), (9, 2327288), (12, 1745466), (18, 1163644), (24, 872733), (36, 581822), (72, 290911), (421, 49752), (691, 30312), (842, 24876), (1263, 16584), (1382, 15156), (1684, 12438), (2073, 10104), (2526, 8292), (2764, 7578), (3368, 6219), (3789, 5528), (4146, 5052)]