20277585

素因数分解:

$3^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{809}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 35254440

約数和(自身を除く): 14976855

約数列:

[1, 3, 5, 9, 15, 45, 557, 809, 1671, 2427, 2785, 4045, 5013, 7281, 8355, 12135, 25065, 36405, 450613, 1351839, 2253065, 4055517, 6759195, 20277585]

約数ペア:

[(1, 20277585), (3, 6759195), (5, 4055517), (9, 2253065), (15, 1351839), (45, 450613), (557, 36405), (809, 25065), (1671, 12135), (2427, 8355), (2785, 7281), (4045, 5013)]