20887734

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2357}}^1$

素因数の和:2580

約数の個数: 32

約数和(自身を含む): 47990016

約数和(自身を除く): 27102282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 211, 422, 633, 1266, 1477, 2357, 2954, 4431, 4714, 7071, 8862, 14142, 16499, 32998, 49497, 98994, 497327, 994654, 1491981, 2983962, 3481289, 6962578, 10443867, 20887734]

約数ペア:

[(1, 20887734), (2, 10443867), (3, 6962578), (6, 3481289), (7, 2983962), (14, 1491981), (21, 994654), (42, 497327), (211, 98994), (422, 49497), (633, 32998), (1266, 16499), (1477, 14142), (2357, 8862), (2954, 7071), (4431, 4714)]