18994558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^2\times {\mathrm{109}}^1$

素因数の和:300

約数の個数: 24

約数和(自身を含む): 31723560

約数和(自身を除く): 12729002

約数列:

[1, 2, 11, 22, 89, 109, 178, 218, 979, 1199, 1958, 2398, 7921, 9701, 15842, 19402, 87131, 106711, 174262, 213422, 863389, 1726778, 9497279, 18994558]

約数ペア:

[(1, 18994558), (2, 9497279), (11, 1726778), (22, 863389), (89, 213422), (109, 174262), (178, 106711), (218, 87131), (979, 19402), (1199, 15842), (1958, 9701), (2398, 7921)]