21696572

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 38690400

約数和(自身を除く): 16993828

約数列:

[1, 2, 4, 97, 194, 199, 281, 388, 398, 562, 796, 1124, 19303, 27257, 38606, 54514, 55919, 77212, 109028, 111838, 223676, 5424143, 10848286, 21696572]

約数ペア:

[(1, 21696572), (2, 10848286), (4, 5424143), (97, 223676), (194, 111838), (199, 109028), (281, 77212), (388, 55919), (398, 54514), (562, 38606), (796, 27257), (1124, 19303)]