20272725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8191}}^1$

素因数の和:8218

約数の個数: 36

約数和(自身を含む): 39616512

約数和(自身を除く): 19343787

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8191, 24573, 40955, 73719, 90101, 122865, 204775, 270303, 368595, 450505, 614325, 810909, 1351515, 1842975, 2252525, 4054545, 6757575, 20272725]

約数ペア:

[(1, 20272725), (3, 6757575), (5, 4054545), (9, 2252525), (11, 1842975), (15, 1351515), (25, 810909), (33, 614325), (45, 450505), (55, 368595), (75, 270303), (99, 204775), (165, 122865), (225, 90101), (275, 73719), (495, 40955), (825, 24573), (2475, 8191)]