223839

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:60

約数の個数: 48

約数和(自身を含む): 449280

約数和(自身を除く): 225441

約数列:

[1, 3, 7, 9, 11, 17, 19, 21, 33, 51, 57, 63, 77, 99, 119, 133, 153, 171, 187, 209, 231, 323, 357, 399, 561, 627, 693, 969, 1071, 1197, 1309, 1463, 1683, 1881, 2261, 2907, 3553, 3927, 4389, 6783, 10659, 11781, 13167, 20349, 24871, 31977, 74613, 223839]

約数ペア:

[(1, 223839), (3, 74613), (7, 31977), (9, 24871), (11, 20349), (17, 13167), (19, 11781), (21, 10659), (33, 6783), (51, 4389), (57, 3927), (63, 3553), (77, 2907), (99, 2261), (119, 1881), (133, 1683), (153, 1463), (171, 1309), (187, 1197), (209, 1071), (231, 969), (323, 693), (357, 627), (399, 561)]