30921215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{27983}}^1$

素因数の和:28018

約数の個数: 16

約数和(自身を含む): 42311808

約数和(自身を除く): 11390593

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 27983, 139915, 363779, 475711, 1818895, 2378555, 6184243, 30921215]

約数ペア:

[(1, 30921215), (5, 6184243), (13, 2378555), (17, 1818895), (65, 475711), (85, 363779), (221, 139915), (1105, 27983)]