21245457

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{1693}}^1$

素因数の和:1832

約数の個数: 16

約数和(自身を含む): 29272320

約数和(自身を除く): 8026863

約数列:

[1, 3, 47, 89, 141, 267, 1693, 4183, 5079, 12549, 79571, 150677, 238713, 452031, 7081819, 21245457]

約数ペア:

[(1, 21245457), (3, 7081819), (47, 452031), (89, 238713), (141, 150677), (267, 79571), (1693, 12549), (4183, 5079)]