20765516

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{997}}^1$

素因数の和:1169

約数の個数: 24

約数和(自身を含む): 37556736

約数和(自身を除く): 16791220

約数列:

[1, 2, 4, 41, 82, 127, 164, 254, 508, 997, 1994, 3988, 5207, 10414, 20828, 40877, 81754, 126619, 163508, 253238, 506476, 5191379, 10382758, 20765516]

約数ペア:

[(1, 20765516), (2, 10382758), (4, 5191379), (41, 506476), (82, 253238), (127, 163508), (164, 126619), (254, 81754), (508, 40877), (997, 20828), (1994, 10414), (3988, 5207)]