18989982

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{8719}}^1$

素因数の和:8749

約数の個数: 36

約数和(自身を含む): 45230640

約数和(自身を除く): 26240658

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 121, 198, 242, 363, 726, 1089, 2178, 8719, 17438, 26157, 52314, 78471, 95909, 156942, 191818, 287727, 575454, 863181, 1054999, 1726362, 2109998, 3164997, 6329994, 9494991, 18989982]

約数ペア:

[(1, 18989982), (2, 9494991), (3, 6329994), (6, 3164997), (9, 2109998), (11, 1726362), (18, 1054999), (22, 863181), (33, 575454), (66, 287727), (99, 191818), (121, 156942), (198, 95909), (242, 78471), (363, 52314), (726, 26157), (1089, 17438), (2178, 8719)]