21851297

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 24570000

約数和(自身を除く): 2718703

約数列:

[1, 13, 29, 149, 377, 389, 1937, 4321, 5057, 11281, 56173, 57961, 146653, 753493, 1680869, 21851297]

約数ペア:

[(1, 21851297), (13, 1680869), (29, 753493), (149, 146653), (377, 57961), (389, 56173), (1937, 11281), (4321, 5057)]