20725664

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15797}}^1$

素因数の和:15848

約数の個数: 24

約数和(自身を含む): 41801508

約数和(自身を除く): 21075844

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15797, 31594, 63188, 126376, 252752, 505504, 647677, 1295354, 2590708, 5181416, 10362832, 20725664]

約数ペア:

[(1, 20725664), (2, 10362832), (4, 5181416), (8, 2590708), (16, 1295354), (32, 647677), (41, 505504), (82, 252752), (164, 126376), (328, 63188), (656, 31594), (1312, 15797)]