25379991

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 48550320

約数和(自身を除く): 23170329

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 49, 57, 63, 91, 117, 133, 147, 171, 233, 247, 273, 399, 441, 637, 699, 741, 819, 931, 1197, 1631, 1729, 1911, 2097, 2223, 2793, 3029, 4427, 4893, 5187, 5733, 8379, 9087, 11417, 12103, 13281, 14679, 15561, 21203, 27261, 30989, 34251, 36309, 39843, 57551, 63609, 92967, 102753, 108927, 148421, 172653, 190827, 216923, 278901, 402857, 445263, 517959, 650769, 1208571, 1335789, 1952307, 2819999, 3625713, 8459997, 25379991]

約数ペア:

[(1, 25379991), (3, 8459997), (7, 3625713), (9, 2819999), (13, 1952307), (19, 1335789), (21, 1208571), (39, 650769), (49, 517959), (57, 445263), (63, 402857), (91, 278901), (117, 216923), (133, 190827), (147, 172653), (171, 148421), (233, 108927), (247, 102753), (273, 92967), (399, 63609), (441, 57551), (637, 39843), (699, 36309), (741, 34251), (819, 30989), (931, 27261), (1197, 21203), (1631, 15561), (1729, 14679), (1911, 13281), (2097, 12103), (2223, 11417), (2793, 9087), (3029, 8379), (4427, 5733), (4893, 5187)]