20375384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{643}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 40687920

約数和(自身を除く): 20312536

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 233, 466, 643, 932, 1286, 1864, 2572, 3961, 5144, 7922, 10931, 15844, 21862, 31688, 43724, 87448, 149819, 299638, 599276, 1198552, 2546923, 5093846, 10187692, 20375384]

約数ペア:

[(1, 20375384), (2, 10187692), (4, 5093846), (8, 2546923), (17, 1198552), (34, 599276), (68, 299638), (136, 149819), (233, 87448), (466, 43724), (643, 31688), (932, 21862), (1286, 15844), (1864, 10931), (2572, 7922), (3961, 5144)]