20959888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68947}}^1$

素因数の和:68974

約数の個数: 20

約数和(自身を含む): 42747760

約数和(自身を除く): 21787872

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68947, 137894, 275788, 551576, 1103152, 1309993, 2619986, 5239972, 10479944, 20959888]

約数ペア:

[(1, 20959888), (2, 10479944), (4, 5239972), (8, 2619986), (16, 1309993), (19, 1103152), (38, 551576), (76, 275788), (152, 137894), (304, 68947)]