31583871

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 55872000

約数和(自身を除く): 24288129

約数列:

[1, 3, 9, 11, 19, 27, 29, 33, 57, 87, 99, 171, 193, 209, 261, 297, 319, 513, 551, 579, 627, 783, 957, 1653, 1737, 1881, 2123, 2871, 3667, 4959, 5211, 5597, 5643, 6061, 6369, 8613, 11001, 14877, 16791, 18183, 19107, 33003, 40337, 50373, 54549, 57321, 61567, 99009, 106343, 121011, 151119, 163647, 184701, 319029, 363033, 554103, 957087, 1089099, 1169773, 1662309, 2871261, 3509319, 10527957, 31583871]

約数ペア:

[(1, 31583871), (3, 10527957), (9, 3509319), (11, 2871261), (19, 1662309), (27, 1169773), (29, 1089099), (33, 957087), (57, 554103), (87, 363033), (99, 319029), (171, 184701), (193, 163647), (209, 151119), (261, 121011), (297, 106343), (319, 99009), (513, 61567), (551, 57321), (579, 54549), (627, 50373), (783, 40337), (957, 33003), (1653, 19107), (1737, 18183), (1881, 16791), (2123, 14877), (2871, 11001), (3667, 8613), (4959, 6369), (5211, 6061), (5597, 5643)]