280967589

素因数分解:

$3^3\times 7^1\times {\mathrm{971}}^1\times {\mathrm{1531}}^1$

素因数の和:2518

約数の個数: 32

約数和(自身を含む): 476513280

約数和(自身を除く): 195545691

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 971, 1531, 2913, 4593, 6797, 8739, 10717, 13779, 20391, 26217, 32151, 41337, 61173, 96453, 183519, 289359, 1486601, 4459803, 10406207, 13379409, 31218621, 40138227, 93655863, 280967589]

約数ペア:

[(1, 280967589), (3, 93655863), (7, 40138227), (9, 31218621), (21, 13379409), (27, 10406207), (63, 4459803), (189, 1486601), (971, 289359), (1531, 183519), (2913, 96453), (4593, 61173), (6797, 41337), (8739, 32151), (10717, 26217), (13779, 20391)]