21072908

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{467}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 38329200

約数和(自身を除く): 17256292

約数列:

[1, 2, 4, 29, 58, 116, 389, 467, 778, 934, 1556, 1868, 11281, 13543, 22562, 27086, 45124, 54172, 181663, 363326, 726652, 5268227, 10536454, 21072908]

約数ペア:

[(1, 21072908), (2, 10536454), (4, 5268227), (29, 726652), (58, 363326), (116, 181663), (389, 54172), (467, 45124), (778, 27086), (934, 22562), (1556, 13543), (1868, 11281)]