20118566

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 34003200

約数和(自身を除く): 13884634

約数列:

[1, 2, 13, 26, 31, 62, 109, 218, 229, 403, 458, 806, 1417, 2834, 2977, 3379, 5954, 6758, 7099, 14198, 24961, 43927, 49922, 87854, 92287, 184574, 324493, 648986, 773791, 1547582, 10059283, 20118566]

約数ペア:

[(1, 20118566), (2, 10059283), (13, 1547582), (26, 773791), (31, 648986), (62, 324493), (109, 184574), (218, 92287), (229, 87854), (403, 49922), (458, 43927), (806, 24961), (1417, 14198), (2834, 7099), (2977, 6758), (3379, 5954)]