20509335

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1973}}^1$

素因数の和:2005

約数の個数: 64

約数和(自身を含む): 45480960

約数和(自身を除く): 24971625

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 135, 165, 189, 231, 297, 315, 385, 495, 693, 945, 1155, 1485, 1973, 2079, 3465, 5919, 9865, 10395, 13811, 17757, 21703, 29595, 41433, 53271, 65109, 69055, 88785, 108515, 124299, 151921, 195327, 207165, 266355, 325545, 372897, 455763, 585981, 621495, 759605, 976635, 1367289, 1864485, 2278815, 2929905, 4101867, 6836445, 20509335]

約数ペア:

[(1, 20509335), (3, 6836445), (5, 4101867), (7, 2929905), (9, 2278815), (11, 1864485), (15, 1367289), (21, 976635), (27, 759605), (33, 621495), (35, 585981), (45, 455763), (55, 372897), (63, 325545), (77, 266355), (99, 207165), (105, 195327), (135, 151921), (165, 124299), (189, 108515), (231, 88785), (297, 69055), (315, 65109), (385, 53271), (495, 41433), (693, 29595), (945, 21703), (1155, 17757), (1485, 13811), (1973, 10395), (2079, 9865), (3465, 5919)]