21787425

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8803}}^1$

素因数の和:8830

約数の個数: 36

約数和(自身を含む): 42576144

約数和(自身を除く): 20788719

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8803, 26409, 44015, 79227, 96833, 132045, 220075, 290499, 396135, 484165, 660225, 871497, 1452495, 1980675, 2420825, 4357485, 7262475, 21787425]

約数ペア:

[(1, 21787425), (3, 7262475), (5, 4357485), (9, 2420825), (11, 1980675), (15, 1452495), (25, 871497), (33, 660225), (45, 484165), (55, 396135), (75, 290499), (99, 220075), (165, 132045), (225, 96833), (275, 79227), (495, 44015), (825, 26409), (2475, 8803)]