20803976

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{563}}^1$

素因数の和:749

約数の個数: 32

約数和(自身を含む): 40608000

約数和(自身を除く): 19804024

約数列:

[1, 2, 4, 8, 31, 62, 124, 149, 248, 298, 563, 596, 1126, 1192, 2252, 4504, 4619, 9238, 17453, 18476, 34906, 36952, 69812, 83887, 139624, 167774, 335548, 671096, 2600497, 5200994, 10401988, 20803976]

約数ペア:

[(1, 20803976), (2, 10401988), (4, 5200994), (8, 2600497), (31, 671096), (62, 335548), (124, 167774), (149, 139624), (248, 83887), (298, 69812), (563, 36952), (596, 34906), (1126, 18476), (1192, 17453), (2252, 9238), (4504, 4619)]