20962864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1039}}^1$

素因数の和:1157

約数の個数: 40

約数和(自身を含む): 44233280

約数和(自身を除く): 23270416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 776, 1039, 1261, 1552, 2078, 2522, 4156, 5044, 8312, 10088, 13507, 16624, 20176, 27014, 54028, 100783, 108056, 201566, 216112, 403132, 806264, 1310179, 1612528, 2620358, 5240716, 10481432, 20962864]

約数ペア:

[(1, 20962864), (2, 10481432), (4, 5240716), (8, 2620358), (13, 1612528), (16, 1310179), (26, 806264), (52, 403132), (97, 216112), (104, 201566), (194, 108056), (208, 100783), (388, 54028), (776, 27014), (1039, 20176), (1261, 16624), (1552, 13507), (2078, 10088), (2522, 8312), (4156, 5044)]