16919728

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7951}}^1$

素因数の和:7985

約数の個数: 40

約数和(自身を含む): 39441920

約数和(自身を除く): 22522192

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 7951, 15902, 31804, 55657, 63608, 111314, 127216, 151069, 222628, 302138, 445256, 604276, 890512, 1057483, 1208552, 2114966, 2417104, 4229932, 8459864, 16919728]

約数ペア:

[(1, 16919728), (2, 8459864), (4, 4229932), (7, 2417104), (8, 2114966), (14, 1208552), (16, 1057483), (19, 890512), (28, 604276), (38, 445256), (56, 302138), (76, 222628), (112, 151069), (133, 127216), (152, 111314), (266, 63608), (304, 55657), (532, 31804), (1064, 15902), (2128, 7951)]