17909949

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 24336000

約数和(自身を除く): 6426051

約数列:

[1, 3, 103, 149, 309, 389, 447, 1167, 15347, 40067, 46041, 57961, 120201, 173883, 5969983, 17909949]

約数ペア:

[(1, 17909949), (3, 5969983), (103, 173883), (149, 120201), (309, 57961), (389, 46041), (447, 40067), (1167, 15347)]