21356586

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 48353760

約数和(自身を除く): 26997174

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 163, 174, 251, 261, 326, 489, 502, 522, 753, 978, 1467, 1506, 2259, 2934, 4518, 4727, 7279, 9454, 14181, 14558, 21837, 28362, 40913, 42543, 43674, 65511, 81826, 85086, 122739, 131022, 245478, 368217, 736434, 1186477, 2372954, 3559431, 7118862, 10678293, 21356586]

約数ペア:

[(1, 21356586), (2, 10678293), (3, 7118862), (6, 3559431), (9, 2372954), (18, 1186477), (29, 736434), (58, 368217), (87, 245478), (163, 131022), (174, 122739), (251, 85086), (261, 81826), (326, 65511), (489, 43674), (502, 42543), (522, 40913), (753, 28362), (978, 21837), (1467, 14558), (1506, 14181), (2259, 9454), (2934, 7279), (4518, 4727)]