20312115

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13147}}^1$

素因数の和:13258

約数の個数: 16

約数和(自身を含む): 32817408

約数和(自身を除く): 12505293

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 13147, 39441, 65735, 197205, 1354141, 4062423, 6770705, 20312115]

約数ペア:

[(1, 20312115), (3, 6770705), (5, 4062423), (15, 1354141), (103, 197205), (309, 65735), (515, 39441), (1545, 13147)]