978628

素因数分解:

$2^2\times 7^2\times {\mathrm{4993}}^1$

素因数の和:5011

約数の個数: 18

約数和(自身を含む): 1992606

約数和(自身を除く): 1013978

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 4993, 9986, 19972, 34951, 69902, 139804, 244657, 489314, 978628]

約数ペア:

[(1, 978628), (2, 489314), (4, 244657), (7, 139804), (14, 69902), (28, 34951), (49, 19972), (98, 9986), (196, 4993)]