21468496

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1861}}^1$

素因数の和:1979

約数の個数: 40

約数和(自身を含む): 48024704

約数和(自身を除く): 26556208

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1648, 1861, 2884, 3722, 5768, 7444, 11536, 13027, 14888, 26054, 29776, 52108, 104216, 191683, 208432, 383366, 766732, 1341781, 1533464, 2683562, 3066928, 5367124, 10734248, 21468496]

約数ペア:

[(1, 21468496), (2, 10734248), (4, 5367124), (7, 3066928), (8, 2683562), (14, 1533464), (16, 1341781), (28, 766732), (56, 383366), (103, 208432), (112, 191683), (206, 104216), (412, 52108), (721, 29776), (824, 26054), (1442, 14888), (1648, 13027), (1861, 11536), (2884, 7444), (3722, 5768)]