21261037545

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4772399}}^1$

素因数の和:4772427

約数の個数: 40

約数和(自身を含む): 41577148800

約数和(自身を除く): 20316111255

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 4772399, 14317197, 23861995, 42951591, 52496389, 71585985, 128854773, 157489167, 214757955, 262481945, 386564319, 472467501, 644273865, 787445835, 1417402503, 1932821595, 2362337505, 4252207509, 7087012515, 21261037545]

約数ペア:

[(1, 21261037545), (3, 7087012515), (5, 4252207509), (9, 2362337505), (11, 1932821595), (15, 1417402503), (27, 787445835), (33, 644273865), (45, 472467501), (55, 386564319), (81, 262481945), (99, 214757955), (135, 157489167), (165, 128854773), (297, 71585985), (405, 52496389), (495, 42951591), (891, 23861995), (1485, 14317197), (4455, 4772399)]