156720549867

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{20672807}}^1$

素因数の和:20672855

約数の個数: 24

約数和(自身を含む): 252042875136

約数和(自身を除く): 95322325269

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 20672807, 62018421, 144709649, 392783333, 434128947, 1178349999, 2749483331, 7462883327, 8248449993, 22388649981, 52240183289, 156720549867]

約数ペア:

[(1, 156720549867), (3, 52240183289), (7, 22388649981), (19, 8248449993), (21, 7462883327), (57, 2749483331), (133, 1178349999), (361, 434128947), (399, 392783333), (1083, 144709649), (2527, 62018421), (7581, 20672807)]