20946478

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 36935424

約数和(自身を除く): 15988946

約数列:

[1, 2, 7, 14, 67, 134, 137, 163, 274, 326, 469, 938, 959, 1141, 1918, 2282, 9179, 10921, 18358, 21842, 22331, 44662, 64253, 76447, 128506, 152894, 156317, 312634, 1496177, 2992354, 10473239, 20946478]

約数ペア:

[(1, 20946478), (2, 10473239), (7, 2992354), (14, 1496177), (67, 312634), (134, 156317), (137, 152894), (163, 128506), (274, 76447), (326, 64253), (469, 44662), (938, 22331), (959, 21842), (1141, 18358), (1918, 10921), (2282, 9179)]