18905816

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2777}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 38003040

約数和(自身を除く): 19097224

約数列:

[1, 2, 4, 8, 23, 37, 46, 74, 92, 148, 184, 296, 851, 1702, 2777, 3404, 5554, 6808, 11108, 22216, 63871, 102749, 127742, 205498, 255484, 410996, 510968, 821992, 2363227, 4726454, 9452908, 18905816]

約数ペア:

[(1, 18905816), (2, 9452908), (4, 4726454), (8, 2363227), (23, 821992), (37, 510968), (46, 410996), (74, 255484), (92, 205498), (148, 127742), (184, 102749), (296, 63871), (851, 22216), (1702, 11108), (2777, 6808), (3404, 5554)]