18420578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{12497}}^1$

素因数の和:12577

約数の個数: 16

約数和(自身を含む): 30595104

約数和(自身を除く): 12174526

約数列:

[1, 2, 11, 22, 67, 134, 737, 1474, 12497, 24994, 137467, 274934, 837299, 1674598, 9210289, 18420578]

約数ペア:

[(1, 18420578), (2, 9210289), (11, 1674598), (22, 837299), (67, 274934), (134, 137467), (737, 24994), (1474, 12497)]