31878195

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16223}}^1$

素因数の和:16362

約数の個数: 16

約数和(自身を含む): 51397632

約数和(自身を除く): 19519437

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 16223, 48669, 81115, 243345, 2125213, 6375639, 10626065, 31878195]

約数ペア:

[(1, 31878195), (3, 10626065), (5, 6375639), (15, 2125213), (131, 243345), (393, 81115), (655, 48669), (1965, 16223)]