20065815

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5791}}^1$

素因数の和:5820

約数の個数: 48

約数和(自身を含む): 43370496

約数和(自身を除く): 23304681

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5791, 17373, 28955, 40537, 52119, 63701, 86865, 121611, 191103, 202685, 260595, 318505, 364833, 445907, 573309, 608055, 955515, 1337721, 1824165, 2229535, 2866545, 4013163, 6688605, 20065815]

約数ペア:

[(1, 20065815), (3, 6688605), (5, 4013163), (7, 2866545), (9, 2229535), (11, 1824165), (15, 1337721), (21, 955515), (33, 608055), (35, 573309), (45, 445907), (55, 364833), (63, 318505), (77, 260595), (99, 202685), (105, 191103), (165, 121611), (231, 86865), (315, 63701), (385, 52119), (495, 40537), (693, 28955), (1155, 17373), (3465, 5791)]