21175448

素因数分解:

$2^3\times 7^3\times {\mathrm{7717}}^1$

素因数の和:7744

約数の個数: 32

約数和(自身を含む): 46308000

約数和(自身を除く): 25132552

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7717, 15434, 30868, 54019, 61736, 108038, 216076, 378133, 432152, 756266, 1512532, 2646931, 3025064, 5293862, 10587724, 21175448]

約数ペア:

[(1, 21175448), (2, 10587724), (4, 5293862), (7, 3025064), (8, 2646931), (14, 1512532), (28, 756266), (49, 432152), (56, 378133), (98, 216076), (196, 108038), (343, 61736), (392, 54019), (686, 30868), (1372, 15434), (2744, 7717)]