645721438

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{404081}}^1$

素因数の和:404147

約数の個数: 16

約数和(自身を含む): 1047380544

約数和(自身を除く): 401659106

約数列:

[1, 2, 17, 34, 47, 94, 799, 1598, 404081, 808162, 6869377, 13738754, 18991807, 37983614, 322860719, 645721438]

約数ペア:

[(1, 645721438), (2, 322860719), (17, 37983614), (34, 18991807), (47, 13738754), (94, 6869377), (799, 808162), (1598, 404081)]