20870169

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 31000320

約数和(自身を除く): 10130151

約数列:

[1, 3, 17, 29, 51, 87, 103, 137, 309, 411, 493, 1479, 1751, 2329, 2987, 3973, 5253, 6987, 8961, 11919, 14111, 42333, 50779, 67541, 152337, 202623, 239887, 409219, 719661, 1227657, 6956723, 20870169]

約数ペア:

[(1, 20870169), (3, 6956723), (17, 1227657), (29, 719661), (51, 409219), (87, 239887), (103, 202623), (137, 152337), (309, 67541), (411, 50779), (493, 42333), (1479, 14111), (1751, 11919), (2329, 8961), (2987, 6987), (3973, 5253)]