21087645215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{425197}}^1$

素因数の和:425331

約数の個数: 32

約数和(自身を含む): 31430636160

約数和(自身を除く): 10342990945

約数列:

[1, 5, 7, 13, 35, 65, 91, 109, 455, 545, 763, 1417, 3815, 7085, 9919, 49595, 425197, 2125985, 2976379, 5527561, 14881895, 27637805, 38692927, 46346473, 193464635, 231732365, 324425311, 602504149, 1622126555, 3012520745, 4217529043, 21087645215]

約数ペア:

[(1, 21087645215), (5, 4217529043), (7, 3012520745), (13, 1622126555), (35, 602504149), (65, 324425311), (91, 231732365), (109, 193464635), (455, 46346473), (545, 38692927), (763, 27637805), (1417, 14881895), (3815, 5527561), (7085, 2976379), (9919, 2125985), (49595, 425197)]