21156

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:91

約数の個数: 24

約数和(自身を含む): 51744

約数和(自身を除く): 30588

約数列:

[1, 2, 3, 4, 6, 12, 41, 43, 82, 86, 123, 129, 164, 172, 246, 258, 492, 516, 1763, 3526, 5289, 7052, 10578, 21156]

約数ペア:

[(1, 21156), (2, 10578), (3, 7052), (4, 5289), (6, 3526), (12, 1763), (41, 516), (43, 492), (82, 258), (86, 246), (123, 172), (129, 164)]