278364723

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{3877}}^1$

素因数の和:4163

約数の個数: 32

約数和(自身を含む): 458658816

約数和(自身を除く): 180294093

約数列:

[1, 3, 7, 13, 21, 39, 91, 263, 273, 789, 1841, 3419, 3877, 5523, 10257, 11631, 23933, 27139, 50401, 71799, 81417, 151203, 352807, 1019651, 1058421, 3058953, 7137557, 13255463, 21412671, 39766389, 92788241, 278364723]

約数ペア:

[(1, 278364723), (3, 92788241), (7, 39766389), (13, 21412671), (21, 13255463), (39, 7137557), (91, 3058953), (263, 1058421), (273, 1019651), (789, 352807), (1841, 151203), (3419, 81417), (3877, 71799), (5523, 50401), (10257, 27139), (11631, 23933)]