21645826

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{3823}}^1$

素因数の和:3993

約数の個数: 16

約数和(自身を含む): 34416000

約数和(自身を除く): 12770174

約数列:

[1, 2, 19, 38, 149, 298, 2831, 3823, 5662, 7646, 72637, 145274, 569627, 1139254, 10822913, 21645826]

約数ペア:

[(1, 21645826), (2, 10822913), (19, 1139254), (38, 569627), (149, 145274), (298, 72637), (2831, 7646), (3823, 5662)]