21264375

素因数分解:

$3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1031}}^1$

素因数の和:1065

約数の個数: 40

約数和(自身を含む): 38687616

約数和(自身を除く): 17423241

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 275, 375, 625, 825, 1031, 1375, 1875, 3093, 4125, 5155, 6875, 11341, 15465, 20625, 25775, 34023, 56705, 77325, 128875, 170115, 283525, 386625, 644375, 850575, 1417625, 1933125, 4252875, 7088125, 21264375]

約数ペア:

[(1, 21264375), (3, 7088125), (5, 4252875), (11, 1933125), (15, 1417625), (25, 850575), (33, 644375), (55, 386625), (75, 283525), (125, 170115), (165, 128875), (275, 77325), (375, 56705), (625, 34023), (825, 25775), (1031, 20625), (1375, 15465), (1875, 11341), (3093, 6875), (4125, 5155)]