20180138661

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{2887}}^1\times {\mathrm{6997}}^1$

素因数の和:9930

約数の個数: 32

約数和(自身を含む): 30719540480

約数和(自身を除く): 10539401819

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 2887, 6997, 8661, 20991, 25983, 62973, 77949, 106819, 188919, 258889, 320457, 776667, 961371, 2330001, 2884113, 6990003, 20200339, 60601017, 181803051, 545409153, 747412543, 2242237629, 6726712887, 20180138661]

約数ペア:

[(1, 20180138661), (3, 6726712887), (9, 2242237629), (27, 747412543), (37, 545409153), (111, 181803051), (333, 60601017), (999, 20200339), (2887, 6990003), (6997, 2884113), (8661, 2330001), (20991, 961371), (25983, 776667), (62973, 320457), (77949, 258889), (106819, 188919)]