20565136

素因数分解:

$2^4\times {\mathrm{571}}^1\times {\mathrm{2251}}^1$

素因数の和:2830

約数の個数: 20

約数和(自身を含む): 39932464

約数和(自身を除く): 19367328

約数列:

[1, 2, 4, 8, 16, 571, 1142, 2251, 2284, 4502, 4568, 9004, 9136, 18008, 36016, 1285321, 2570642, 5141284, 10282568, 20565136]

約数ペア:

[(1, 20565136), (2, 10282568), (4, 5141284), (8, 2570642), (16, 1285321), (571, 36016), (1142, 18008), (2251, 9136), (2284, 9004), (4502, 4568)]