20687943

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{4733}}^1$

素因数の和:4814

約数の個数: 16

約数和(自身を含む): 29085696

約数和(自身を除く): 8397753

約数列:

[1, 3, 31, 47, 93, 141, 1457, 4371, 4733, 14199, 146723, 222451, 440169, 667353, 6895981, 20687943]

約数ペア:

[(1, 20687943), (3, 6895981), (31, 667353), (47, 440169), (93, 222451), (141, 146723), (1457, 14199), (4371, 4733)]