661485

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 1221120

約数和(自身を除く): 559635

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 211, 285, 627, 633, 1045, 1055, 2321, 3135, 3165, 4009, 6963, 11605, 12027, 20045, 34815, 44099, 60135, 132297, 220495, 661485]

約数ペア:

[(1, 661485), (3, 220495), (5, 132297), (11, 60135), (15, 44099), (19, 34815), (33, 20045), (55, 12027), (57, 11605), (95, 6963), (165, 4009), (209, 3165), (211, 3135), (285, 2321), (627, 1055), (633, 1045)]