20921784775

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{1283}}^1\times {\mathrm{9187}}^1$

素因数の和:10551

約数の個数: 24

約数和(自身を含む): 26331778944

約数和(自身を除く): 5409994169

約数列:

[1, 5, 25, 71, 355, 1283, 1775, 6415, 9187, 32075, 45935, 91093, 229675, 455465, 652277, 2277325, 3261385, 11786921, 16306925, 58934605, 294673025, 836871391, 4184356955, 20921784775]

約数ペア:

[(1, 20921784775), (5, 4184356955), (25, 836871391), (71, 294673025), (355, 58934605), (1283, 16306925), (1775, 11786921), (6415, 3261385), (9187, 2277325), (32075, 652277), (45935, 455465), (91093, 229675)]