21678708

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{42013}}^1$

素因数の和:42063

約数の個数: 24

約数和(自身を含む): 51761248

約数和(自身を除く): 30082540

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 42013, 84026, 126039, 168052, 252078, 504156, 1806559, 3613118, 5419677, 7226236, 10839354, 21678708]

約数ペア:

[(1, 21678708), (2, 10839354), (3, 7226236), (4, 5419677), (6, 3613118), (12, 1806559), (43, 504156), (86, 252078), (129, 168052), (172, 126039), (258, 84026), (516, 42013)]