21427868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2399}}^1$

素因数の和:2450

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 26956132

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 44, 58, 77, 116, 154, 203, 308, 319, 406, 638, 812, 1276, 2233, 2399, 4466, 4798, 8932, 9596, 16793, 26389, 33586, 52778, 67172, 69571, 105556, 139142, 184723, 278284, 369446, 486997, 738892, 765281, 973994, 1530562, 1947988, 3061124, 5356967, 10713934, 21427868]

約数ペア:

[(1, 21427868), (2, 10713934), (4, 5356967), (7, 3061124), (11, 1947988), (14, 1530562), (22, 973994), (28, 765281), (29, 738892), (44, 486997), (58, 369446), (77, 278284), (116, 184723), (154, 139142), (203, 105556), (308, 69571), (319, 67172), (406, 52778), (638, 33586), (812, 26389), (1276, 16793), (2233, 9596), (2399, 8932), (4466, 4798)]