21999152

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1907}}^1$

素因数の和:2025

約数の個数: 40

約数和(自身を含む): 49211136

約数和(自身を除く): 27211984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1648, 1907, 2884, 3814, 5768, 7628, 11536, 13349, 15256, 26698, 30512, 53396, 106792, 196421, 213584, 392842, 785684, 1374947, 1571368, 2749894, 3142736, 5499788, 10999576, 21999152]

約数ペア:

[(1, 21999152), (2, 10999576), (4, 5499788), (7, 3142736), (8, 2749894), (14, 1571368), (16, 1374947), (28, 785684), (56, 392842), (103, 213584), (112, 196421), (206, 106792), (412, 53396), (721, 30512), (824, 26698), (1442, 15256), (1648, 13349), (1907, 11536), (2884, 7628), (3814, 5768)]