21248406

素因数分解:

$2^1\times 3^5\times {\mathrm{43721}}^1$

素因数の和:43738

約数の個数: 24

約数和(自身を含む): 47744424

約数和(自身を除く): 26496018

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 43721, 87442, 131163, 262326, 393489, 786978, 1180467, 2360934, 3541401, 7082802, 10624203, 21248406]

約数ペア:

[(1, 21248406), (2, 10624203), (3, 7082802), (6, 3541401), (9, 2360934), (18, 1180467), (27, 786978), (54, 393489), (81, 262326), (162, 131163), (243, 87442), (486, 43721)]