20996872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{201893}}^1$

素因数の和:201912

約数の個数: 16

約数和(自身を含む): 42397740

約数和(自身を除く): 21400868

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 201893, 403786, 807572, 1615144, 2624609, 5249218, 10498436, 20996872]

約数ペア:

[(1, 20996872), (2, 10498436), (4, 5249218), (8, 2624609), (13, 1615144), (26, 807572), (52, 403786), (104, 201893)]