20642638

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:336

約数の個数: 24

約数和(自身を含む): 32848200

約数和(自身を除く): 12205562

約数列:

[1, 2, 23, 46, 109, 179, 218, 358, 529, 1058, 2507, 4117, 5014, 8234, 19511, 39022, 57661, 94691, 115322, 189382, 448753, 897506, 10321319, 20642638]

約数ペア:

[(1, 20642638), (2, 10321319), (23, 897506), (46, 448753), (109, 189382), (179, 115322), (218, 94691), (358, 57661), (529, 39022), (1058, 19511), (2507, 8234), (4117, 5014)]