20178196317

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{8243}}^1$

素因数の和:8474

約数の個数: 48

約数和(自身を含む): 30788372160

約数和(自身を除く): 10610175843

約数列:

[1, 3, 9, 29, 83, 87, 113, 249, 261, 339, 747, 1017, 2407, 3277, 7221, 8243, 9379, 9831, 21663, 24729, 28137, 29493, 74187, 84411, 239047, 271991, 684169, 717141, 815973, 931459, 2052507, 2151423, 2447919, 2794377, 6157521, 8383131, 19840901, 27012311, 59522703, 77311097, 81036933, 178568109, 231933291, 243110799, 695799873, 2242021813, 6726065439, 20178196317]

約数ペア:

[(1, 20178196317), (3, 6726065439), (9, 2242021813), (29, 695799873), (83, 243110799), (87, 231933291), (113, 178568109), (249, 81036933), (261, 77311097), (339, 59522703), (747, 27012311), (1017, 19840901), (2407, 8383131), (3277, 6157521), (7221, 2794377), (8243, 2447919), (9379, 2151423), (9831, 2052507), (21663, 931459), (24729, 815973), (28137, 717141), (29493, 684169), (74187, 271991), (84411, 239047)]