20969025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3631}}^1$

素因数の和:3662

約数の個数: 48

約数和(自身を含む): 43235328

約数和(自身を除く): 22266303

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 3631, 5775, 10893, 18155, 25417, 39941, 54465, 76251, 90775, 119823, 127085, 199705, 272325, 279587, 381255, 599115, 635425, 838761, 998525, 1397935, 1906275, 2995575, 4193805, 6989675, 20969025]

約数ペア:

[(1, 20969025), (3, 6989675), (5, 4193805), (7, 2995575), (11, 1906275), (15, 1397935), (21, 998525), (25, 838761), (33, 635425), (35, 599115), (55, 381255), (75, 279587), (77, 272325), (105, 199705), (165, 127085), (175, 119823), (231, 90775), (275, 76251), (385, 54465), (525, 39941), (825, 25417), (1155, 18155), (1925, 10893), (3631, 5775)]