21875804

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{827}}^1$

素因数の和:1237

約数の個数: 24

約数和(自身を含む): 40687920

約数和(自身を除く): 18812116

約数列:

[1, 2, 4, 17, 34, 68, 389, 778, 827, 1556, 1654, 3308, 6613, 13226, 14059, 26452, 28118, 56236, 321703, 643406, 1286812, 5468951, 10937902, 21875804]

約数ペア:

[(1, 21875804), (2, 10937902), (4, 5468951), (17, 1286812), (34, 643406), (68, 321703), (389, 56236), (778, 28118), (827, 26452), (1556, 14059), (1654, 13226), (3308, 6613)]