18378921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^2$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 28462752

約数和(自身を除く): 10083831

約数列:

[1, 3, 11, 17, 33, 51, 181, 187, 543, 561, 1991, 3077, 5973, 9231, 32761, 33847, 98283, 101541, 360371, 556937, 1081113, 1670811, 6126307, 18378921]

約数ペア:

[(1, 18378921), (3, 6126307), (11, 1670811), (17, 1081113), (33, 556937), (51, 360371), (181, 101541), (187, 98283), (543, 33847), (561, 32761), (1991, 9231), (3077, 5973)]