20947976

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12899}}^1$

素因数の和:12941

約数の個数: 32

約数和(自身を含む): 46440000

約数和(自身を除く): 25492024

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12899, 25798, 51596, 90293, 103192, 180586, 361172, 374071, 722344, 748142, 1496284, 2618497, 2992568, 5236994, 10473988, 20947976]

約数ペア:

[(1, 20947976), (2, 10473988), (4, 5236994), (7, 2992568), (8, 2618497), (14, 1496284), (28, 748142), (29, 722344), (56, 374071), (58, 361172), (116, 180586), (203, 103192), (232, 90293), (406, 51596), (812, 25798), (1624, 12899)]