20512172415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{19553}}^1$

素因数の和:19768

約数の個数: 64

約数和(自身を含む): 38264518656

約数和(自身を除く): 17752346241

約数列:

[1, 3, 5, 7, 15, 21, 35, 97, 103, 105, 291, 309, 485, 515, 679, 721, 1455, 1545, 2037, 2163, 3395, 3605, 9991, 10185, 10815, 19553, 29973, 49955, 58659, 69937, 97765, 136871, 149865, 209811, 293295, 349685, 410613, 684355, 1049055, 1896641, 2013959, 2053065, 5689923, 6041877, 9483205, 10069795, 13276487, 14097713, 28449615, 30209385, 39829461, 42293139, 66382435, 70488565, 195354023, 199147305, 211465695, 586062069, 976770115, 1367478161, 2930310345, 4102434483, 6837390805, 20512172415]

約数ペア:

[(1, 20512172415), (3, 6837390805), (5, 4102434483), (7, 2930310345), (15, 1367478161), (21, 976770115), (35, 586062069), (97, 211465695), (103, 199147305), (105, 195354023), (291, 70488565), (309, 66382435), (485, 42293139), (515, 39829461), (679, 30209385), (721, 28449615), (1455, 14097713), (1545, 13276487), (2037, 10069795), (2163, 9483205), (3395, 6041877), (3605, 5689923), (9991, 2053065), (10185, 2013959), (10815, 1896641), (19553, 1049055), (29973, 684355), (49955, 410613), (58659, 349685), (69937, 293295), (97765, 209811), (136871, 149865)]