21385232

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121507}}^1$

素因数の和:121526

約数の個数: 20

約数和(自身を含む): 45200976

約数和(自身を除く): 23815744

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121507, 243014, 486028, 972056, 1336577, 1944112, 2673154, 5346308, 10692616, 21385232]

約数ペア:

[(1, 21385232), (2, 10692616), (4, 5346308), (8, 2673154), (11, 1944112), (16, 1336577), (22, 972056), (44, 486028), (88, 243014), (176, 121507)]