20997168

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 56948736

約数和(自身を除く): 35951568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 103, 124, 137, 186, 206, 248, 274, 309, 372, 411, 412, 496, 548, 618, 744, 822, 824, 1096, 1236, 1488, 1644, 1648, 2192, 2472, 3193, 3288, 4247, 4944, 6386, 6576, 8494, 9579, 12741, 12772, 14111, 16988, 19158, 25482, 25544, 28222, 33976, 38316, 42333, 50964, 51088, 56444, 67952, 76632, 84666, 101928, 112888, 153264, 169332, 203856, 225776, 338664, 437441, 677328, 874882, 1312323, 1749764, 2624646, 3499528, 5249292, 6999056, 10498584, 20997168]

約数ペア:

[(1, 20997168), (2, 10498584), (3, 6999056), (4, 5249292), (6, 3499528), (8, 2624646), (12, 1749764), (16, 1312323), (24, 874882), (31, 677328), (48, 437441), (62, 338664), (93, 225776), (103, 203856), (124, 169332), (137, 153264), (186, 112888), (206, 101928), (248, 84666), (274, 76632), (309, 67952), (372, 56444), (411, 51088), (412, 50964), (496, 42333), (548, 38316), (618, 33976), (744, 28222), (822, 25544), (824, 25482), (1096, 19158), (1236, 16988), (1488, 14111), (1644, 12772), (1648, 12741), (2192, 9579), (2472, 8494), (3193, 6576), (3288, 6386), (4247, 4944)]