19992018

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{54623}}^1$

素因数の和:54689

約数の個数: 16

約数和(自身を含む): 40640256

約数和(自身を除く): 20648238

約数列:

[1, 2, 3, 6, 61, 122, 183, 366, 54623, 109246, 163869, 327738, 3332003, 6664006, 9996009, 19992018]

約数ペア:

[(1, 19992018), (2, 9996009), (3, 6664006), (6, 3332003), (61, 327738), (122, 163869), (183, 109246), (366, 54623)]