19894418

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{911}}^1$

素因数の和:1153

約数の個数: 16

約数和(自身を含む): 30533760

約数和(自身を除く): 10639342

約数列:

[1, 2, 61, 122, 179, 358, 911, 1822, 10919, 21838, 55571, 111142, 163069, 326138, 9947209, 19894418]

約数ペア:

[(1, 19894418), (2, 9947209), (61, 326138), (122, 163069), (179, 111142), (358, 55571), (911, 21838), (1822, 10919)]