2011281921

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{77839}}^1$

素因数の和:77891

約数の個数: 40

約数和(自身を含む): 3390710400

約数和(自身を除く): 1379428479

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 261, 297, 319, 783, 891, 957, 2349, 2871, 8613, 25839, 77839, 233517, 700551, 856229, 2101653, 2257331, 2568687, 6304959, 6771993, 7706061, 20315979, 23118183, 24830641, 60947937, 69354549, 74491923, 182843811, 223475769, 670427307, 2011281921]

約数ペア:

[(1, 2011281921), (3, 670427307), (9, 223475769), (11, 182843811), (27, 74491923), (29, 69354549), (33, 60947937), (81, 24830641), (87, 23118183), (99, 20315979), (261, 7706061), (297, 6771993), (319, 6304959), (783, 2568687), (891, 2257331), (957, 2101653), (2349, 856229), (2871, 700551), (8613, 233517), (25839, 77839)]