20818370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{811}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 39989376

約数和(自身を除く): 19171006

約数列:

[1, 2, 5, 10, 17, 34, 85, 151, 170, 302, 755, 811, 1510, 1622, 2567, 4055, 5134, 8110, 12835, 13787, 25670, 27574, 68935, 122461, 137870, 244922, 612305, 1224610, 2081837, 4163674, 10409185, 20818370]

約数ペア:

[(1, 20818370), (2, 10409185), (5, 4163674), (10, 2081837), (17, 1224610), (34, 612305), (85, 244922), (151, 137870), (170, 122461), (302, 68935), (755, 27574), (811, 25670), (1510, 13787), (1622, 12835), (2567, 8110), (4055, 5134)]