18979978

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{1429}}^1$

素因数の和:1689

約数の個数: 16

約数和(自身を含む): 29601000

約数和(自身を除く): 10621022

約数列:

[1, 2, 29, 58, 229, 458, 1429, 2858, 6641, 13282, 41441, 82882, 327241, 654482, 9489989, 18979978]

約数ペア:

[(1, 18979978), (2, 9489989), (29, 654482), (58, 327241), (229, 82882), (458, 41441), (1429, 13282), (2858, 6641)]