21129825

素因数分解:

$3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{2633}}^1$

素因数の和:2753

約数の個数: 24

約数和(自身を含む): 35274528

約数和(自身を除く): 14144703

約数列:

[1, 3, 5, 15, 25, 75, 107, 321, 535, 1605, 2633, 2675, 7899, 8025, 13165, 39495, 65825, 197475, 281731, 845193, 1408655, 4225965, 7043275, 21129825]

約数ペア:

[(1, 21129825), (3, 7043275), (5, 4225965), (15, 1408655), (25, 845193), (75, 281731), (107, 197475), (321, 65825), (535, 39495), (1605, 13165), (2633, 8025), (2675, 7899)]