9938012

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4999}}^1$

素因数の和:5081

約数の個数: 24

約数和(自身を含む): 20160000

約数和(自身を除く): 10221988

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 4999, 9998, 19996, 34993, 69986, 139972, 354929, 709858, 1419716, 2484503, 4969006, 9938012]

約数ペア:

[(1, 9938012), (2, 4969006), (4, 2484503), (7, 1419716), (14, 709858), (28, 354929), (71, 139972), (142, 69986), (284, 34993), (497, 19996), (994, 9998), (1988, 4999)]