25316487

素因数分解:

$3^2\times 7^3\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 43680000

約数和(自身を除く): 18363513

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 139, 147, 177, 343, 413, 417, 441, 531, 973, 1029, 1239, 1251, 2891, 2919, 3087, 3717, 6811, 8201, 8673, 8757, 20237, 20433, 24603, 26019, 47677, 57407, 60711, 61299, 73809, 143031, 172221, 182133, 401849, 429093, 516663, 1205547, 2812943, 3616641, 8438829, 25316487]

約数ペア:

[(1, 25316487), (3, 8438829), (7, 3616641), (9, 2812943), (21, 1205547), (49, 516663), (59, 429093), (63, 401849), (139, 182133), (147, 172221), (177, 143031), (343, 73809), (413, 61299), (417, 60711), (441, 57407), (531, 47677), (973, 26019), (1029, 24603), (1239, 20433), (1251, 20237), (2891, 8757), (2919, 8673), (3087, 8201), (3717, 6811)]