21615498

素因数分解:

$2^1\times 3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 80

約数和(自身を含む): 51749280

約数和(自身を除く): 30133782

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 43, 54, 58, 81, 86, 87, 107, 129, 162, 174, 214, 258, 261, 321, 387, 522, 642, 774, 783, 963, 1161, 1247, 1566, 1926, 2322, 2349, 2494, 2889, 3103, 3483, 3741, 4601, 4698, 5778, 6206, 6966, 7482, 8667, 9202, 9309, 11223, 13803, 17334, 18618, 22446, 27606, 27927, 33669, 41409, 55854, 67338, 82818, 83781, 101007, 124227, 133429, 167562, 202014, 248454, 251343, 266858, 372681, 400287, 502686, 745362, 800574, 1200861, 2401722, 3602583, 7205166, 10807749, 21615498]

約数ペア:

[(1, 21615498), (2, 10807749), (3, 7205166), (6, 3602583), (9, 2401722), (18, 1200861), (27, 800574), (29, 745362), (43, 502686), (54, 400287), (58, 372681), (81, 266858), (86, 251343), (87, 248454), (107, 202014), (129, 167562), (162, 133429), (174, 124227), (214, 101007), (258, 83781), (261, 82818), (321, 67338), (387, 55854), (522, 41409), (642, 33669), (774, 27927), (783, 27606), (963, 22446), (1161, 18618), (1247, 17334), (1566, 13803), (1926, 11223), (2322, 9309), (2349, 9202), (2494, 8667), (2889, 7482), (3103, 6966), (3483, 6206), (3741, 5778), (4601, 4698)]