8721999

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 15410304

約数和(自身を除く): 6688305

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 243, 251, 297, 351, 429, 753, 891, 1053, 1287, 2259, 2673, 2761, 3159, 3263, 3861, 6777, 8283, 9789, 11583, 20331, 24849, 29367, 34749, 35893, 60993, 74547, 88101, 107679, 223641, 264303, 323037, 670923, 792909, 969111, 2907333, 8721999]

約数ペア:

[(1, 8721999), (3, 2907333), (9, 969111), (11, 792909), (13, 670923), (27, 323037), (33, 264303), (39, 223641), (81, 107679), (99, 88101), (117, 74547), (143, 60993), (243, 35893), (251, 34749), (297, 29367), (351, 24849), (429, 20331), (753, 11583), (891, 9789), (1053, 8283), (1287, 6777), (2259, 3861), (2673, 3263), (2761, 3159)]