20983725

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4441}}^1$

素因数の和:4467

約数の個数: 48

約数和(自身を含む): 44064640

約数和(自身を除く): 23080915

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4441, 4725, 13323, 22205, 31087, 39969, 66615, 93261, 111025, 119907, 155435, 199845, 279783, 333075, 466305, 599535, 777175, 839349, 999225, 1398915, 2331525, 2997675, 4196745, 6994575, 20983725]

約数ペア:

[(1, 20983725), (3, 6994575), (5, 4196745), (7, 2997675), (9, 2331525), (15, 1398915), (21, 999225), (25, 839349), (27, 777175), (35, 599535), (45, 466305), (63, 333075), (75, 279783), (105, 199845), (135, 155435), (175, 119907), (189, 111025), (225, 93261), (315, 66615), (525, 39969), (675, 31087), (945, 22205), (1575, 13323), (4441, 4725)]