20958156921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{4930171}}^1$

素因数の和:4930296

約数の個数: 16

約数和(自身を含む): 30369859520

約数和(自身を除く): 9411702599

約数列:

[1, 3, 13, 39, 109, 327, 1417, 4251, 4930171, 14790513, 64092223, 192276669, 537388639, 1612165917, 6986052307, 20958156921]

約数ペア:

[(1, 20958156921), (3, 6986052307), (13, 1612165917), (39, 537388639), (109, 192276669), (327, 64092223), (1417, 14790513), (4251, 4930171)]