644328258

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{23209}}^1$

素因数の和:23882

約数の個数: 32

約数和(自身を含む): 1475041920

約数和(自身を除く): 830713662

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 661, 1322, 1983, 3966, 4627, 9254, 13881, 23209, 27762, 46418, 69627, 139254, 162463, 324926, 487389, 974778, 15341149, 30682298, 46023447, 92046894, 107388043, 214776086, 322164129, 644328258]

約数ペア:

[(1, 644328258), (2, 322164129), (3, 214776086), (6, 107388043), (7, 92046894), (14, 46023447), (21, 30682298), (42, 15341149), (661, 974778), (1322, 487389), (1983, 324926), (3966, 162463), (4627, 139254), (9254, 69627), (13881, 46418), (23209, 27762)]