21909728

素因数分解:

$2^5\times {\mathrm{101}}^1\times {\mathrm{6779}}^1$

素因数の和:6890

約数の個数: 24

約数和(自身を含む): 43568280

約数和(自身を除く): 21658552

約数列:

[1, 2, 4, 8, 16, 32, 101, 202, 404, 808, 1616, 3232, 6779, 13558, 27116, 54232, 108464, 216928, 684679, 1369358, 2738716, 5477432, 10954864, 21909728]

約数ペア:

[(1, 21909728), (2, 10954864), (4, 5477432), (8, 2738716), (16, 1369358), (32, 684679), (101, 216928), (202, 108464), (404, 54232), (808, 27116), (1616, 13558), (3232, 6779)]