21906925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1293

約数の個数: 24

約数和(自身を含む): 29283840

約数和(自身を除く): 7376915

約数列:

[1, 5, 23, 25, 31, 115, 155, 575, 713, 775, 1229, 3565, 6145, 17825, 28267, 30725, 38099, 141335, 190495, 706675, 876277, 952475, 4381385, 21906925]

約数ペア:

[(1, 21906925), (5, 4381385), (23, 952475), (25, 876277), (31, 706675), (115, 190495), (155, 141335), (575, 38099), (713, 30725), (775, 28267), (1229, 17825), (3565, 6145)]