21648264

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1970

約数の個数: 64

約数和(自身を含む): 60445440

約数和(自身を除く): 38797176

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 43, 44, 66, 86, 88, 129, 132, 172, 258, 264, 344, 473, 516, 946, 1032, 1419, 1892, 1907, 2838, 3784, 3814, 5676, 5721, 7628, 11352, 11442, 15256, 20977, 22884, 41954, 45768, 62931, 82001, 83908, 125862, 164002, 167816, 246003, 251724, 328004, 492006, 503448, 656008, 902011, 984012, 1804022, 1968024, 2706033, 3608044, 5412066, 7216088, 10824132, 21648264]

約数ペア:

[(1, 21648264), (2, 10824132), (3, 7216088), (4, 5412066), (6, 3608044), (8, 2706033), (11, 1968024), (12, 1804022), (22, 984012), (24, 902011), (33, 656008), (43, 503448), (44, 492006), (66, 328004), (86, 251724), (88, 246003), (129, 167816), (132, 164002), (172, 125862), (258, 83908), (264, 82001), (344, 62931), (473, 45768), (516, 41954), (946, 22884), (1032, 20977), (1419, 15256), (1892, 11442), (1907, 11352), (2838, 7628), (3784, 5721), (3814, 5676)]