18548541

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{173}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 31821120

約数和(自身を除く): 13272579

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 171, 173, 209, 297, 361, 513, 519, 627, 1083, 1557, 1881, 1903, 3249, 3287, 3971, 4671, 5643, 5709, 9747, 9861, 11913, 17127, 29583, 35739, 36157, 51381, 62453, 88749, 107217, 108471, 187359, 325413, 562077, 686983, 976239, 1686231, 2060949, 6182847, 18548541]

約数ペア:

[(1, 18548541), (3, 6182847), (9, 2060949), (11, 1686231), (19, 976239), (27, 686983), (33, 562077), (57, 325413), (99, 187359), (171, 108471), (173, 107217), (209, 88749), (297, 62453), (361, 51381), (513, 36157), (519, 35739), (627, 29583), (1083, 17127), (1557, 11913), (1881, 9861), (1903, 9747), (3249, 5709), (3287, 5643), (3971, 4671)]