18640328

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7741}}^1$

素因数の和:7797

約数の個数: 32

約数和(自身を含む): 40877760

約数和(自身を除く): 22237432

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 7741, 15482, 30964, 54187, 61928, 108374, 216748, 332863, 433496, 665726, 1331452, 2330041, 2662904, 4660082, 9320164, 18640328]

約数ペア:

[(1, 18640328), (2, 9320164), (4, 4660082), (7, 2662904), (8, 2330041), (14, 1331452), (28, 665726), (43, 433496), (56, 332863), (86, 216748), (172, 108374), (301, 61928), (344, 54187), (602, 30964), (1204, 15482), (2408, 7741)]