21679902

素因数分解:

$2^1\times 3^2\times {\mathrm{641}}^1\times {\mathrm{1879}}^1$

素因数の和:2528

約数の個数: 24

約数和(自身を含む): 47071440

約数和(自身を除く): 25391538

約数列:

[1, 2, 3, 6, 9, 18, 641, 1282, 1879, 1923, 3758, 3846, 5637, 5769, 11274, 11538, 16911, 33822, 1204439, 2408878, 3613317, 7226634, 10839951, 21679902]

約数ペア:

[(1, 21679902), (2, 10839951), (3, 7226634), (6, 3613317), (9, 2408878), (18, 1204439), (641, 33822), (1282, 16911), (1879, 11538), (1923, 11274), (3758, 5769), (3846, 5637)]