291207285

素因数分解:

$3^3\times 5^1\times {\mathrm{2157091}}^1$

素因数の和:2157105

約数の個数: 16

約数和(自身を含む): 517702080

約数和(自身を除く): 226494795

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 2157091, 6471273, 10785455, 19413819, 32356365, 58241457, 97069095, 291207285]

約数ペア:

[(1, 291207285), (3, 97069095), (5, 58241457), (9, 32356365), (15, 19413819), (27, 10785455), (45, 6471273), (135, 2157091)]