19651473

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 32123520

約数和(自身を除く): 12472047

約数列:

[1, 3, 9, 17, 29, 43, 51, 87, 103, 129, 153, 261, 309, 387, 493, 731, 927, 1247, 1479, 1751, 2193, 2987, 3741, 4429, 4437, 5253, 6579, 8961, 11223, 13287, 15759, 21199, 26883, 39861, 50779, 63597, 75293, 128441, 152337, 190791, 225879, 385323, 457011, 677637, 1155969, 2183497, 6550491, 19651473]

約数ペア:

[(1, 19651473), (3, 6550491), (9, 2183497), (17, 1155969), (29, 677637), (43, 457011), (51, 385323), (87, 225879), (103, 190791), (129, 152337), (153, 128441), (261, 75293), (309, 63597), (387, 50779), (493, 39861), (731, 26883), (927, 21199), (1247, 15759), (1479, 13287), (1751, 11223), (2193, 8961), (2987, 6579), (3741, 5253), (4429, 4437)]