20038215

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 33555456

約数和(自身を除く): 13517241

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 645, 661, 705, 1983, 2021, 3305, 6063, 9915, 10105, 28423, 30315, 31067, 85269, 93201, 142115, 155335, 426345, 466005, 1335881, 4007643, 6679405, 20038215]

約数ペア:

[(1, 20038215), (3, 6679405), (5, 4007643), (15, 1335881), (43, 466005), (47, 426345), (129, 155335), (141, 142115), (215, 93201), (235, 85269), (645, 31067), (661, 30315), (705, 28423), (1983, 10105), (2021, 9915), (3305, 6063)]