18821438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{495301}}^1$

素因数の和:495322

約数の個数: 8

約数和(自身を含む): 29718120

約数和(自身を除く): 10896682

約数列:

[1, 2, 19, 38, 495301, 990602, 9410719, 18821438]

約数ペア:

[(1, 18821438), (2, 9410719), (19, 990602), (38, 495301)]