21371756

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{4217}}^1$

素因数の和:4409

約数の個数: 24

約数和(自身を含む): 42989856

約数和(自身を除く): 21618100

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 4217, 5068, 8434, 16868, 29519, 59038, 118076, 763277, 1526554, 3053108, 5342939, 10685878, 21371756]

約数ペア:

[(1, 21371756), (2, 10685878), (4, 5342939), (7, 3053108), (14, 1526554), (28, 763277), (181, 118076), (362, 59038), (724, 29519), (1267, 16868), (2534, 8434), (4217, 5068)]