18471715

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{853}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 22873536

約数和(自身を除く): 4401821

約数列:

[1, 5, 61, 71, 305, 355, 853, 4265, 4331, 21655, 52033, 60563, 260165, 302815, 3694343, 18471715]

約数ペア:

[(1, 18471715), (5, 3694343), (61, 302815), (71, 260165), (305, 60563), (355, 52033), (853, 21655), (4265, 4331)]