18550448

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1861}}^1$

素因数の和:1965

約数の個数: 40

約数和(自身を含む): 41559840

約数和(自身を除く): 23009392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 1861, 2492, 3722, 4984, 7444, 9968, 13027, 14888, 26054, 29776, 52108, 104216, 165629, 208432, 331258, 662516, 1159403, 1325032, 2318806, 2650064, 4637612, 9275224, 18550448]

約数ペア:

[(1, 18550448), (2, 9275224), (4, 4637612), (7, 2650064), (8, 2318806), (14, 1325032), (16, 1159403), (28, 662516), (56, 331258), (89, 208432), (112, 165629), (178, 104216), (356, 52108), (623, 29776), (712, 26054), (1246, 14888), (1424, 13027), (1861, 9968), (2492, 7444), (3722, 4984)]