291269218

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1\times {\mathrm{2011}}^1$

素因数の和:2673

約数の個数: 16

約数和(自身を含む): 441110880

約数和(自身を除く): 149841662

約数列:

[1, 2, 139, 278, 521, 1042, 2011, 4022, 72419, 144838, 279529, 559058, 1047731, 2095462, 145634609, 291269218]

約数ペア:

[(1, 291269218), (2, 145634609), (139, 2095462), (278, 1047731), (521, 559058), (1042, 279529), (2011, 144838), (4022, 72419)]