21842320

素因数分解:

$2^4\times 5^1\times {\mathrm{273029}}^1$

素因数の和:273042

約数の個数: 20

約数和(自身を含む): 50783580

約数和(自身を除く): 28941260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273029, 546058, 1092116, 1365145, 2184232, 2730290, 4368464, 5460580, 10921160, 21842320]

約数ペア:

[(1, 21842320), (2, 10921160), (4, 5460580), (5, 4368464), (8, 2730290), (10, 2184232), (16, 1365145), (20, 1092116), (40, 546058), (80, 273029)]