638962359

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{1999}}^1$

素因数の和:2531

約数の個数: 32

約数和(自身を含む): 1007616000

約数和(自身を除く): 368653641

約数列:

[1, 3, 7, 21, 31, 93, 217, 491, 651, 1473, 1999, 3437, 5997, 10311, 13993, 15221, 41979, 45663, 61969, 106547, 185907, 319641, 433783, 981509, 1301349, 2944527, 6870563, 20611689, 30426779, 91280337, 212987453, 638962359]

約数ペア:

[(1, 638962359), (3, 212987453), (7, 91280337), (21, 30426779), (31, 20611689), (93, 6870563), (217, 2944527), (491, 1301349), (651, 981509), (1473, 433783), (1999, 319641), (3437, 185907), (5997, 106547), (10311, 61969), (13993, 45663), (15221, 41979)]