21032895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8297}}^1$

素因数の和:8331

約数の個数: 24

約数和(自身を含む): 36444816

約数和(自身を除く): 15411921

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8297, 24891, 41485, 107861, 124455, 323583, 539305, 1402193, 1617915, 4206579, 7010965, 21032895]

約数ペア:

[(1, 21032895), (3, 7010965), (5, 4206579), (13, 1617915), (15, 1402193), (39, 539305), (65, 323583), (169, 124455), (195, 107861), (507, 41485), (845, 24891), (2535, 8297)]