21079510

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 17839370

約数列:

[1, 2, 5, 10, 83, 109, 166, 218, 233, 415, 466, 545, 830, 1090, 1165, 2330, 9047, 18094, 19339, 25397, 38678, 45235, 50794, 90470, 96695, 126985, 193390, 253970, 2107951, 4215902, 10539755, 21079510]

約数ペア:

[(1, 21079510), (2, 10539755), (5, 4215902), (10, 2107951), (83, 253970), (109, 193390), (166, 126985), (218, 96695), (233, 90470), (415, 50794), (466, 45235), (545, 38678), (830, 25397), (1090, 19339), (1165, 18094), (2330, 9047)]