18719014

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{1021}}^1$

素因数の和:1215

約数の個数: 16

約数和(自身を含む): 28697760

約数和(自身を除く): 9978746

約数列:

[1, 2, 89, 103, 178, 206, 1021, 2042, 9167, 18334, 90869, 105163, 181738, 210326, 9359507, 18719014]

約数ペア:

[(1, 18719014), (2, 9359507), (89, 210326), (103, 181738), (178, 105163), (206, 90869), (1021, 18334), (2042, 9167)]