245427819

素因数分解:

$3^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{2621}}^1$

素因数の和:2665

約数の個数: 40

約数和(自身を含む): 411276432

約数和(自身を除く): 165848613

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 343, 637, 1029, 1911, 2401, 2621, 4459, 7203, 7863, 13377, 18347, 31213, 34073, 55041, 93639, 102219, 128429, 238511, 385287, 715533, 899003, 1669577, 2697009, 5008731, 6293021, 11687039, 18879063, 35061117, 81809273, 245427819]

約数ペア:

[(1, 245427819), (3, 81809273), (7, 35061117), (13, 18879063), (21, 11687039), (39, 6293021), (49, 5008731), (91, 2697009), (147, 1669577), (273, 899003), (343, 715533), (637, 385287), (1029, 238511), (1911, 128429), (2401, 102219), (2621, 93639), (4459, 55041), (7203, 34073), (7863, 31213), (13377, 18347)]