18918088

素因数分解:

$2^3\times 7^1\times {\mathrm{499}}^1\times {\mathrm{677}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 40680000

約数和(自身を除く): 21761912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 499, 677, 998, 1354, 1996, 2708, 3493, 3992, 4739, 5416, 6986, 9478, 13972, 18956, 27944, 37912, 337823, 675646, 1351292, 2364761, 2702584, 4729522, 9459044, 18918088]

約数ペア:

[(1, 18918088), (2, 9459044), (4, 4729522), (7, 2702584), (8, 2364761), (14, 1351292), (28, 675646), (56, 337823), (499, 37912), (677, 27944), (998, 18956), (1354, 13972), (1996, 9478), (2708, 6986), (3493, 5416), (3992, 4739)]