18990328

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3001}}^1$

素因数の和:3127

約数の個数: 32

約数和(自身を含む): 41067360

約数和(自身を除く): 22077032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3001, 3164, 6002, 6328, 12004, 21007, 24008, 42014, 84028, 168056, 339113, 678226, 1356452, 2373791, 2712904, 4747582, 9495164, 18990328]

約数ペア:

[(1, 18990328), (2, 9495164), (4, 4747582), (7, 2712904), (8, 2373791), (14, 1356452), (28, 678226), (56, 339113), (113, 168056), (226, 84028), (452, 42014), (791, 24008), (904, 21007), (1582, 12004), (3001, 6328), (3164, 6002)]