20797425

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2801}}^1$

素因数の和:2831

約数の個数: 48

約数和(自身を含む): 41693760

約数和(自身を除く): 20896335

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2801, 7425, 8403, 14005, 25209, 30811, 42015, 70025, 75627, 92433, 126045, 154055, 210075, 277299, 378135, 462165, 630225, 770275, 831897, 1386495, 1890675, 2310825, 4159485, 6932475, 20797425]

約数ペア:

[(1, 20797425), (3, 6932475), (5, 4159485), (9, 2310825), (11, 1890675), (15, 1386495), (25, 831897), (27, 770275), (33, 630225), (45, 462165), (55, 378135), (75, 277299), (99, 210075), (135, 154055), (165, 126045), (225, 92433), (275, 75627), (297, 70025), (495, 42015), (675, 30811), (825, 25209), (1485, 14005), (2475, 8403), (2801, 7425)]