20691772

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{2039}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 37699200

約数和(自身を除く): 17007428

約数列:

[1, 2, 4, 43, 59, 86, 118, 172, 236, 2039, 2537, 4078, 5074, 8156, 10148, 87677, 120301, 175354, 240602, 350708, 481204, 5172943, 10345886, 20691772]

約数ペア:

[(1, 20691772), (2, 10345886), (4, 5172943), (43, 481204), (59, 350708), (86, 240602), (118, 175354), (172, 120301), (236, 87677), (2039, 10148), (2537, 8156), (4078, 5074)]