21035408

素因数分解:

$2^4\times {\mathrm{839}}^1\times {\mathrm{1567}}^1$

素因数の和:2414

約数の個数: 20

約数和(自身を含む): 40830720

約数和(自身を除く): 19795312

約数列:

[1, 2, 4, 8, 16, 839, 1567, 1678, 3134, 3356, 6268, 6712, 12536, 13424, 25072, 1314713, 2629426, 5258852, 10517704, 21035408]

約数ペア:

[(1, 21035408), (2, 10517704), (4, 5258852), (8, 2629426), (16, 1314713), (839, 25072), (1567, 13424), (1678, 12536), (3134, 6712), (3356, 6268)]