20128535

素因数分解:

$5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{3011}}^1$

素因数の和:3214

約数の個数: 16

約数和(自身を含む): 27758592

約数和(自身を除く): 7630057

約数列:

[1, 5, 7, 35, 191, 955, 1337, 3011, 6685, 15055, 21077, 105385, 575101, 2875505, 4025707, 20128535]

約数ペア:

[(1, 20128535), (5, 4025707), (7, 2875505), (35, 575101), (191, 105385), (955, 21077), (1337, 15055), (3011, 6685)]