19551818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{499}}^1$

素因数の和:662

約数の個数: 32

約数和(自身を含む): 34776000

約数和(自身を除く): 15224182

約数列:

[1, 2, 11, 13, 22, 26, 137, 143, 274, 286, 499, 998, 1507, 1781, 3014, 3562, 5489, 6487, 10978, 12974, 19591, 39182, 68363, 71357, 136726, 142714, 751993, 888719, 1503986, 1777438, 9775909, 19551818]

約数ペア:

[(1, 19551818), (2, 9775909), (11, 1777438), (13, 1503986), (22, 888719), (26, 751993), (137, 142714), (143, 136726), (274, 71357), (286, 68363), (499, 39182), (998, 19591), (1507, 12974), (1781, 10978), (3014, 6487), (3562, 5489)]