21668360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4073}}^1$

素因数の和:4110

約数の個数: 64

約数和(自身を含む): 58665600

約数和(自身を除く): 36997240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 4073, 5320, 8146, 16292, 20365, 28511, 32584, 40730, 57022, 77387, 81460, 114044, 142555, 154774, 162920, 228088, 285110, 309548, 386935, 541709, 570220, 619096, 773870, 1083418, 1140440, 1547740, 2166836, 2708545, 3095480, 4333672, 5417090, 10834180, 21668360]

約数ペア:

[(1, 21668360), (2, 10834180), (4, 5417090), (5, 4333672), (7, 3095480), (8, 2708545), (10, 2166836), (14, 1547740), (19, 1140440), (20, 1083418), (28, 773870), (35, 619096), (38, 570220), (40, 541709), (56, 386935), (70, 309548), (76, 285110), (95, 228088), (133, 162920), (140, 154774), (152, 142555), (190, 114044), (266, 81460), (280, 77387), (380, 57022), (532, 40730), (665, 32584), (760, 28511), (1064, 20365), (1330, 16292), (2660, 8146), (4073, 5320)]