21502408

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{62507}}^1$

素因数の和:62556

約数の個数: 16

約数和(自身を含む): 41255280

約数和(自身を除く): 19752872

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 62507, 125014, 250028, 500056, 2687801, 5375602, 10751204, 21502408]

約数ペア:

[(1, 21502408), (2, 10751204), (4, 5375602), (8, 2687801), (43, 500056), (86, 250028), (172, 125014), (344, 62507)]