18878458

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{811}}^1$

素因数の和:1029

約数の個数: 16

約数和(自身を含む): 28881216

約数和(自身を除く): 10002758

約数列:

[1, 2, 103, 113, 206, 226, 811, 1622, 11639, 23278, 83533, 91643, 167066, 183286, 9439229, 18878458]

約数ペア:

[(1, 18878458), (2, 9439229), (103, 183286), (113, 167066), (206, 91643), (226, 83533), (811, 23278), (1622, 11639)]