21394996

素因数分解:

$2^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1181}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 42892416

約数和(自身を除く): 21497420

約数列:

[1, 2, 4, 7, 14, 28, 647, 1181, 1294, 2362, 2588, 4529, 4724, 8267, 9058, 16534, 18116, 33068, 764107, 1528214, 3056428, 5348749, 10697498, 21394996]

約数ペア:

[(1, 21394996), (2, 10697498), (4, 5348749), (7, 3056428), (14, 1528214), (28, 764107), (647, 33068), (1181, 18116), (1294, 16534), (2362, 9058), (2588, 8267), (4529, 4724)]