20787029151

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{103}}^1\times {\mathrm{5717}}^1$

素因数の和:5912

約数の個数: 48

約数和(自身を含む): 32787835392

約数和(自身を除く): 12000806241

約数列:

[1, 3, 7, 21, 41, 103, 123, 287, 309, 721, 861, 1681, 2163, 4223, 5043, 5717, 11767, 12669, 17151, 29561, 35301, 40019, 88683, 120057, 173143, 234397, 519429, 588851, 703191, 1212001, 1640779, 1766553, 3636003, 4121957, 4922337, 9610277, 12365871, 24142891, 28830831, 67271939, 72428673, 169000237, 201815817, 507000711, 989858531, 2969575593, 6929009717, 20787029151]

約数ペア:

[(1, 20787029151), (3, 6929009717), (7, 2969575593), (21, 989858531), (41, 507000711), (103, 201815817), (123, 169000237), (287, 72428673), (309, 67271939), (721, 28830831), (861, 24142891), (1681, 12365871), (2163, 9610277), (4223, 4922337), (5043, 4121957), (5717, 3636003), (11767, 1766553), (12669, 1640779), (17151, 1212001), (29561, 703191), (35301, 588851), (40019, 519429), (88683, 234397), (120057, 173143)]