19721222

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{4517}}^1$

素因数の和:4615

約数の個数: 16

約数和(自身を含む): 30903120

約数和(自身を除く): 11181898

約数列:

[1, 2, 37, 59, 74, 118, 2183, 4366, 4517, 9034, 167129, 266503, 334258, 533006, 9860611, 19721222]

約数ペア:

[(1, 19721222), (2, 9860611), (37, 533006), (59, 334258), (74, 266503), (118, 167129), (2183, 9034), (4366, 4517)]