20189949

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{1291}}^1$

素因数の和:1708

約数の個数: 16

約数和(自身を含む): 29085504

約数和(自身を除く): 8895555

約数列:

[1, 3, 13, 39, 401, 1203, 1291, 3873, 5213, 15639, 16783, 50349, 517691, 1553073, 6729983, 20189949]

約数ペア:

[(1, 20189949), (3, 6729983), (13, 1553073), (39, 517691), (401, 50349), (1203, 16783), (1291, 15639), (3873, 5213)]