21953008

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 53853696

約数和(自身を除く): 31900688

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 103, 112, 154, 173, 176, 206, 308, 346, 412, 616, 692, 721, 824, 1133, 1211, 1232, 1384, 1442, 1648, 1903, 2266, 2422, 2768, 2884, 3806, 4532, 4844, 5768, 7612, 7931, 9064, 9688, 11536, 13321, 15224, 15862, 17819, 18128, 19376, 26642, 30448, 31724, 35638, 53284, 63448, 71276, 106568, 124733, 126896, 142552, 196009, 213136, 249466, 285104, 392018, 498932, 784036, 997864, 1372063, 1568072, 1995728, 2744126, 3136144, 5488252, 10976504, 21953008]

約数ペア:

[(1, 21953008), (2, 10976504), (4, 5488252), (7, 3136144), (8, 2744126), (11, 1995728), (14, 1568072), (16, 1372063), (22, 997864), (28, 784036), (44, 498932), (56, 392018), (77, 285104), (88, 249466), (103, 213136), (112, 196009), (154, 142552), (173, 126896), (176, 124733), (206, 106568), (308, 71276), (346, 63448), (412, 53284), (616, 35638), (692, 31724), (721, 30448), (824, 26642), (1133, 19376), (1211, 18128), (1232, 17819), (1384, 15862), (1442, 15224), (1648, 13321), (1903, 11536), (2266, 9688), (2422, 9064), (2768, 7931), (2884, 7612), (3806, 5768), (4532, 4844)]