18251212

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 38133760

約数和(自身を除く): 19882548

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 79, 148, 158, 223, 259, 316, 446, 518, 553, 892, 1036, 1106, 1561, 2212, 2923, 3122, 5846, 6244, 8251, 11692, 16502, 17617, 20461, 33004, 35234, 40922, 57757, 70468, 81844, 115514, 123319, 231028, 246638, 493276, 651829, 1303658, 2607316, 4562803, 9125606, 18251212]

約数ペア:

[(1, 18251212), (2, 9125606), (4, 4562803), (7, 2607316), (14, 1303658), (28, 651829), (37, 493276), (74, 246638), (79, 231028), (148, 123319), (158, 115514), (223, 81844), (259, 70468), (316, 57757), (446, 40922), (518, 35234), (553, 33004), (892, 20461), (1036, 17617), (1106, 16502), (1561, 11692), (2212, 8251), (2923, 6244), (3122, 5846)]