21139102

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{1153}}^1$

素因数の和:1347

約数の個数: 16

約数和(自身を含む): 32404320

約数和(自身を除く): 11265218

約数列:

[1, 2, 89, 103, 178, 206, 1153, 2306, 9167, 18334, 102617, 118759, 205234, 237518, 10569551, 21139102]

約数ペア:

[(1, 21139102), (2, 10569551), (89, 237518), (103, 205234), (178, 118759), (206, 102617), (1153, 18334), (2306, 9167)]