20807879659

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2951891}}^1$

素因数の和:2951970

約数の個数: 16

約数和(自身を含む): 25504346880

約数和(自身を除く): 4696467221

約数列:

[1, 7, 19, 53, 133, 371, 1007, 7049, 2951891, 20663237, 56085929, 156450223, 392601503, 1095151561, 2972554237, 20807879659]

約数ペア:

[(1, 20807879659), (7, 2972554237), (19, 1095151561), (53, 392601503), (133, 156450223), (371, 56085929), (1007, 20663237), (7049, 2951891)]