21286874

素因数分解:

$2^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{773}}^1$

素因数の和:1070

約数の個数: 24

約数和(自身を含む): 37323828

約数和(自身を除く): 16036954

約数列:

[1, 2, 7, 14, 49, 98, 281, 562, 773, 1546, 1967, 3934, 5411, 10822, 13769, 27538, 37877, 75754, 217213, 434426, 1520491, 3040982, 10643437, 21286874]

約数ペア:

[(1, 21286874), (2, 10643437), (7, 3040982), (14, 1520491), (49, 434426), (98, 217213), (281, 75754), (562, 37877), (773, 27538), (1546, 13769), (1967, 10822), (3934, 5411)]