21075730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{727}}^1$

素因数の和:970

約数の個数: 32

約数和(自身を含む): 41094144

約数和(自身を除く): 20018414

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 223, 446, 727, 1115, 1454, 2230, 2899, 3635, 5798, 7270, 9451, 14495, 18902, 28990, 47255, 94510, 162121, 324242, 810605, 1621210, 2107573, 4215146, 10537865, 21075730]

約数ペア:

[(1, 21075730), (2, 10537865), (5, 4215146), (10, 2107573), (13, 1621210), (26, 810605), (65, 324242), (130, 162121), (223, 94510), (446, 47255), (727, 28990), (1115, 18902), (1454, 14495), (2230, 9451), (2899, 7270), (3635, 5798)]