21191174

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{1031}}^1$

素因数の和:1315

約数の個数: 16

約数和(自身を含む): 32693760

約数和(自身を除く): 11502586

約数列:

[1, 2, 43, 86, 239, 478, 1031, 2062, 10277, 20554, 44333, 88666, 246409, 492818, 10595587, 21191174]

約数ペア:

[(1, 21191174), (2, 10595587), (43, 492818), (86, 246409), (239, 88666), (478, 44333), (1031, 20554), (2062, 10277)]