81475681

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:433

約数の個数: 24

約数和(自身を含む): 97695720

約数和(自身を除く): 16220039

約数列:

[1, 7, 49, 53, 137, 229, 371, 959, 1603, 2597, 6713, 7261, 11221, 12137, 31373, 50827, 84959, 219611, 355789, 594713, 1537277, 1662769, 11639383, 81475681]

約数ペア:

[(1, 81475681), (7, 11639383), (49, 1662769), (53, 1537277), (137, 594713), (229, 355789), (371, 219611), (959, 84959), (1603, 50827), (2597, 31373), (6713, 12137), (7261, 11221)]