19838749

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 3385571

約数列:

[1, 7, 71, 179, 223, 497, 1253, 1561, 12709, 15833, 39917, 88963, 110831, 279419, 2834107, 19838749]

約数ペア:

[(1, 19838749), (7, 2834107), (71, 279419), (179, 110831), (223, 88963), (497, 39917), (1253, 15833), (1561, 12709)]