19723756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{8821}}^1$

素因数の和:8881

約数の個数: 24

約数和(自身を含む): 38040464

約数和(自身を除く): 18316708

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 8821, 17642, 35284, 114673, 229346, 379303, 458692, 758606, 1517212, 4930939, 9861878, 19723756]

約数ペア:

[(1, 19723756), (2, 9861878), (4, 4930939), (13, 1517212), (26, 758606), (43, 458692), (52, 379303), (86, 229346), (172, 114673), (559, 35284), (1118, 17642), (2236, 8821)]