20628872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4423}}^1$

素因数の和:4493

約数の個数: 32

約数和(自身を含む): 43001280

約数和(自身を除く): 22372408

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4423, 4664, 8846, 17692, 35384, 48653, 97306, 194612, 234419, 389224, 468838, 937676, 1875352, 2578609, 5157218, 10314436, 20628872]

約数ペア:

[(1, 20628872), (2, 10314436), (4, 5157218), (8, 2578609), (11, 1875352), (22, 937676), (44, 468838), (53, 389224), (88, 234419), (106, 194612), (212, 97306), (424, 48653), (583, 35384), (1166, 17692), (2332, 8846), (4423, 4664)]