9988215

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 16632000

約数和(自身を除く): 6643785

約数列:

[1, 3, 5, 15, 41, 109, 123, 149, 205, 327, 447, 545, 615, 745, 1635, 2235, 4469, 6109, 13407, 16241, 18327, 22345, 30545, 48723, 67035, 81205, 91635, 243615, 665881, 1997643, 3329405, 9988215]

約数ペア:

[(1, 9988215), (3, 3329405), (5, 1997643), (15, 665881), (41, 243615), (109, 91635), (123, 81205), (149, 67035), (205, 48723), (327, 30545), (447, 22345), (545, 18327), (615, 16241), (745, 13407), (1635, 6109), (2235, 4469)]