254286873

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{443}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 398960640

約数和(自身を除く): 144673767

約数列:

[1, 3, 9, 23, 47, 59, 69, 141, 177, 207, 423, 443, 531, 1081, 1329, 1357, 2773, 3243, 3987, 4071, 8319, 9729, 10189, 12213, 20821, 24957, 26137, 30567, 62463, 63779, 78411, 91701, 187389, 191337, 235233, 478883, 574011, 601151, 1228439, 1436649, 1803453, 3685317, 4309947, 5410359, 11055951, 28254097, 84762291, 254286873]

約数ペア:

[(1, 254286873), (3, 84762291), (9, 28254097), (23, 11055951), (47, 5410359), (59, 4309947), (69, 3685317), (141, 1803453), (177, 1436649), (207, 1228439), (423, 601151), (443, 574011), (531, 478883), (1081, 235233), (1329, 191337), (1357, 187389), (2773, 91701), (3243, 78411), (3987, 63779), (4071, 62463), (8319, 30567), (9729, 26137), (10189, 24957), (12213, 20821)]