2129120721

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{288851}}^1$

素因数の和:288883

約数の個数: 40

約数和(自身を含む): 3914522304

約数和(自身を除く): 1785401583

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 7371, 288851, 866553, 2021957, 2599659, 3755063, 6065871, 7798977, 11265189, 18197613, 23396931, 26285441, 33795567, 54592839, 78856323, 101386701, 163778517, 236568969, 304160103, 709706907, 2129120721]

約数ペア:

[(1, 2129120721), (3, 709706907), (7, 304160103), (9, 236568969), (13, 163778517), (21, 101386701), (27, 78856323), (39, 54592839), (63, 33795567), (81, 26285441), (91, 23396931), (117, 18197613), (189, 11265189), (273, 7798977), (351, 6065871), (567, 3755063), (819, 2599659), (1053, 2021957), (2457, 866553), (7371, 288851)]