21539570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{743}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 41997312

約数和(自身を除く): 20457742

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 223, 446, 743, 1115, 1486, 2230, 2899, 3715, 5798, 7430, 9659, 14495, 19318, 28990, 48295, 96590, 165689, 331378, 828445, 1656890, 2153957, 4307914, 10769785, 21539570]

約数ペア:

[(1, 21539570), (2, 10769785), (5, 4307914), (10, 2153957), (13, 1656890), (26, 828445), (65, 331378), (130, 165689), (223, 96590), (446, 48295), (743, 28990), (1115, 19318), (1486, 14495), (2230, 9659), (2899, 7430), (3715, 5798)]