19389872

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{2963}}^1$

素因数の和:3380

約数の個数: 20

約数和(自身を含む): 37672440

約数和(自身を除く): 18282568

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 2963, 3272, 5926, 6544, 11852, 23704, 47408, 1211867, 2423734, 4847468, 9694936, 19389872]

約数ペア:

[(1, 19389872), (2, 9694936), (4, 4847468), (8, 2423734), (16, 1211867), (409, 47408), (818, 23704), (1636, 11852), (2963, 6544), (3272, 5926)]