20163825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8147}}^1$

素因数の和:8174

約数の個数: 36

約数和(自身を含む): 39403728

約数和(自身を除く): 19239903

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 8147, 24441, 40735, 73323, 89617, 122205, 203675, 268851, 366615, 448085, 611025, 806553, 1344255, 1833075, 2240425, 4032765, 6721275, 20163825]

約数ペア:

[(1, 20163825), (3, 6721275), (5, 4032765), (9, 2240425), (11, 1833075), (15, 1344255), (25, 806553), (33, 611025), (45, 448085), (55, 366615), (75, 268851), (99, 203675), (165, 122205), (225, 89617), (275, 73323), (495, 40735), (825, 24441), (2475, 8147)]