21129426

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27299}}^1$

素因数の和:27350

約数の個数: 24

約数和(自身を含む): 46846800

約数和(自身を除く): 25717374

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27299, 54598, 81897, 163794, 245691, 491382, 1173857, 2347714, 3521571, 7043142, 10564713, 21129426]

約数ペア:

[(1, 21129426), (2, 10564713), (3, 7043142), (6, 3521571), (9, 2347714), (18, 1173857), (43, 491382), (86, 245691), (129, 163794), (258, 81897), (387, 54598), (774, 27299)]