21890708

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{26959}}^1$

素因数の和:26999

約数の個数: 24

約数和(自身を含む): 45292800

約数和(自身を除く): 23402092

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 26959, 53918, 107836, 188713, 377426, 754852, 781811, 1563622, 3127244, 5472677, 10945354, 21890708]

約数ペア:

[(1, 21890708), (2, 10945354), (4, 5472677), (7, 3127244), (14, 1563622), (28, 781811), (29, 754852), (58, 377426), (116, 188713), (203, 107836), (406, 53918), (812, 26959)]