20685494

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7759}}^1$

素因数の和:7835

約数の個数: 16

約数和(自身を含む): 32778240

約数和(自身を除く): 12092746

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7759, 15518, 240529, 333637, 481058, 667274, 10342747, 20685494]

約数ペア:

[(1, 20685494), (2, 10342747), (31, 667274), (43, 481058), (62, 333637), (86, 240529), (1333, 15518), (2666, 7759)]