18128583

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 30643200

約数和(自身を除く): 12514617

約数列:

[1, 3, 9, 11, 27, 31, 33, 93, 99, 121, 179, 279, 297, 341, 363, 537, 837, 1023, 1089, 1611, 1969, 3069, 3267, 3751, 4833, 5549, 5907, 9207, 11253, 16647, 17721, 21659, 33759, 49941, 53163, 61039, 64977, 101277, 149823, 183117, 194931, 549351, 584793, 671429, 1648053, 2014287, 6042861, 18128583]

約数ペア:

[(1, 18128583), (3, 6042861), (9, 2014287), (11, 1648053), (27, 671429), (31, 584793), (33, 549351), (93, 194931), (99, 183117), (121, 149823), (179, 101277), (279, 64977), (297, 61039), (341, 53163), (363, 49941), (537, 33759), (837, 21659), (1023, 17721), (1089, 16647), (1611, 11253), (1969, 9207), (3069, 5907), (3267, 5549), (3751, 4833)]