21296480

素因数分解:

$2^5\times 5^1\times {\mathrm{133103}}^1$

素因数の和:133118

約数の個数: 24

約数和(自身を含む): 50313312

約数和(自身を除く): 29016832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 133103, 266206, 532412, 665515, 1064824, 1331030, 2129648, 2662060, 4259296, 5324120, 10648240, 21296480]

約数ペア:

[(1, 21296480), (2, 10648240), (4, 5324120), (5, 4259296), (8, 2662060), (10, 2129648), (16, 1331030), (20, 1064824), (32, 665515), (40, 532412), (80, 266206), (160, 133103)]