20537686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 34771968

約数和(自身を除く): 14234282

約数列:

[1, 2, 13, 26, 31, 62, 83, 166, 307, 403, 614, 806, 1079, 2158, 2573, 3991, 5146, 7982, 9517, 19034, 25481, 33449, 50962, 66898, 123721, 247442, 331253, 662506, 789911, 1579822, 10268843, 20537686]

約数ペア:

[(1, 20537686), (2, 10268843), (13, 1579822), (26, 789911), (31, 662506), (62, 331253), (83, 247442), (166, 123721), (307, 66898), (403, 50962), (614, 33449), (806, 25481), (1079, 19034), (2158, 9517), (2573, 7982), (3991, 5146)]