21334984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25113656

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 83, 88, 92, 127, 166, 184, 253, 254, 332, 506, 508, 664, 913, 1012, 1016, 1397, 1826, 1909, 2024, 2794, 2921, 3652, 3818, 5588, 5842, 7304, 7636, 10541, 11176, 11684, 15272, 20999, 21082, 23368, 32131, 41998, 42164, 64262, 83996, 84328, 115951, 128524, 167992, 231902, 242443, 257048, 463804, 484886, 927608, 969772, 1939544, 2666873, 5333746, 10667492, 21334984]

約数ペア:

[(1, 21334984), (2, 10667492), (4, 5333746), (8, 2666873), (11, 1939544), (22, 969772), (23, 927608), (44, 484886), (46, 463804), (83, 257048), (88, 242443), (92, 231902), (127, 167992), (166, 128524), (184, 115951), (253, 84328), (254, 83996), (332, 64262), (506, 42164), (508, 41998), (664, 32131), (913, 23368), (1012, 21082), (1016, 20999), (1397, 15272), (1826, 11684), (1909, 11176), (2024, 10541), (2794, 7636), (2921, 7304), (3652, 5842), (3818, 5588)]