31820404329

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{173}}^1\times {\mathrm{1579}}^1$

素因数の和:1851

約数の個数: 72

約数和(自身を含む): 54124050240

約数和(自身を除く): 22303645911

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 173, 301, 387, 519, 903, 1211, 1557, 1579, 1849, 2709, 3633, 4737, 5547, 7439, 10899, 11053, 12943, 14211, 16641, 22317, 33159, 38829, 52073, 66951, 67897, 99477, 116487, 156219, 203691, 273167, 319877, 468657, 475279, 611073, 819501, 959631, 1425837, 1912169, 2239139, 2458503, 2878893, 2919571, 4277511, 5736507, 6717417, 8758713, 11746181, 17209521, 20152251, 20436997, 26276139, 35238543, 61310991, 82223267, 105715629, 183932973, 246669801, 505085783, 740009403, 1515257349, 3535600481, 4545772047, 10606801443, 31820404329]

約数ペア:

[(1, 31820404329), (3, 10606801443), (7, 4545772047), (9, 3535600481), (21, 1515257349), (43, 740009403), (63, 505085783), (129, 246669801), (173, 183932973), (301, 105715629), (387, 82223267), (519, 61310991), (903, 35238543), (1211, 26276139), (1557, 20436997), (1579, 20152251), (1849, 17209521), (2709, 11746181), (3633, 8758713), (4737, 6717417), (5547, 5736507), (7439, 4277511), (10899, 2919571), (11053, 2878893), (12943, 2458503), (14211, 2239139), (16641, 1912169), (22317, 1425837), (33159, 959631), (38829, 819501), (52073, 611073), (66951, 475279), (67897, 468657), (99477, 319877), (116487, 273167), (156219, 203691)]