20531154

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2999}}^1$

素因数の和:3174

約数の個数: 32

約数和(自身を含む): 47232000

約数和(自身を除く): 26700846

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 163, 326, 489, 978, 1141, 2282, 2999, 3423, 5998, 6846, 8997, 17994, 20993, 41986, 62979, 125958, 488837, 977674, 1466511, 2933022, 3421859, 6843718, 10265577, 20531154]

約数ペア:

[(1, 20531154), (2, 10265577), (3, 6843718), (6, 3421859), (7, 2933022), (14, 1466511), (21, 977674), (42, 488837), (163, 125958), (326, 62979), (489, 41986), (978, 20993), (1141, 17994), (2282, 8997), (2999, 6846), (3423, 5998)]