16861665

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8581}}^1$

素因数の和:8720

約数の個数: 16

約数和(自身を含む): 27187776

約数和(自身を除く): 10326111

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 8581, 25743, 42905, 128715, 1124111, 3372333, 5620555, 16861665]

約数ペア:

[(1, 16861665), (3, 5620555), (5, 3372333), (15, 1124111), (131, 128715), (393, 42905), (655, 25743), (1965, 8581)]