18612909

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1931}}^1$

素因数の和:1967

約数の個数: 40

約数和(自身を含む): 33663168

約数和(自身を除く): 15050259

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 1931, 3213, 5793, 9639, 13517, 17379, 32827, 40551, 52137, 98481, 121653, 156411, 229789, 295443, 364959, 689367, 886329, 1094877, 2068101, 2658987, 6204303, 18612909]

約数ペア:

[(1, 18612909), (3, 6204303), (7, 2658987), (9, 2068101), (17, 1094877), (21, 886329), (27, 689367), (51, 364959), (63, 295443), (81, 229789), (119, 156411), (153, 121653), (189, 98481), (357, 52137), (459, 40551), (567, 32827), (1071, 17379), (1377, 13517), (1931, 9639), (3213, 5793)]