571199993

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 716352000

約数和(自身を除く): 145152007

約数列:

[1, 7, 13, 91, 103, 149, 409, 721, 1043, 1339, 1937, 2863, 5317, 9373, 13559, 15347, 37219, 42127, 60941, 107429, 199511, 294889, 426587, 547651, 792233, 1396577, 3833557, 5545631, 6276923, 43938461, 81599999, 571199993]

約数ペア:

[(1, 571199993), (7, 81599999), (13, 43938461), (91, 6276923), (103, 5545631), (149, 3833557), (409, 1396577), (721, 792233), (1043, 547651), (1339, 426587), (1937, 294889), (2863, 199511), (5317, 107429), (9373, 60941), (13559, 42127), (15347, 37219)]