21597862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 39554352

約数和(自身を除く): 17956490

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 143, 157, 169, 286, 314, 338, 407, 481, 814, 962, 1727, 1859, 2041, 3454, 3718, 4082, 5291, 5809, 6253, 10582, 11618, 12506, 22451, 26533, 44902, 53066, 63899, 68783, 75517, 127798, 137566, 151034, 291863, 583726, 830687, 981721, 1661374, 1963442, 10798931, 21597862]

約数ペア:

[(1, 21597862), (2, 10798931), (11, 1963442), (13, 1661374), (22, 981721), (26, 830687), (37, 583726), (74, 291863), (143, 151034), (157, 137566), (169, 127798), (286, 75517), (314, 68783), (338, 63899), (407, 53066), (481, 44902), (814, 26533), (962, 22451), (1727, 12506), (1859, 11618), (2041, 10582), (3454, 6253), (3718, 5809), (4082, 5291)]