21248778

素因数分解:

$2^1\times 3^1\times {\mathrm{223}}^1\times {\mathrm{15881}}^1$

素因数の和:16109

約数の個数: 16

約数和(自身を含む): 42690816

約数和(自身を除く): 21442038

約数列:

[1, 2, 3, 6, 223, 446, 669, 1338, 15881, 31762, 47643, 95286, 3541463, 7082926, 10624389, 21248778]

約数ペア:

[(1, 21248778), (2, 10624389), (3, 7082926), (6, 3541463), (223, 95286), (446, 47643), (669, 31762), (1338, 15881)]