19831865

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{521}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 24955776

約数和(自身を除く): 5123911

約数列:

[1, 5, 23, 115, 331, 521, 1655, 2605, 7613, 11983, 38065, 59915, 172451, 862255, 3966373, 19831865]

約数ペア:

[(1, 19831865), (5, 3966373), (23, 862255), (115, 172451), (331, 59915), (521, 38065), (1655, 11983), (2605, 7613)]