21901649

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{617}}^1$

素因数の和:1096

約数の個数: 16

約数和(自身を含む): 27409536

約数和(自身を除く): 5507887

約数列:

[1, 7, 11, 77, 461, 617, 3227, 4319, 5071, 6787, 35497, 47509, 284437, 1991059, 3128807, 21901649]

約数ペア:

[(1, 21901649), (7, 3128807), (11, 1991059), (77, 284437), (461, 47509), (617, 35497), (3227, 6787), (4319, 5071)]