21855536

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{2131}}^1$

素因数の和:2780

約数の個数: 20

約数和(自身を含む): 42431064

約数和(自身を除く): 20575528

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2131, 2564, 4262, 5128, 8524, 10256, 17048, 34096, 1365971, 2731942, 5463884, 10927768, 21855536]

約数ペア:

[(1, 21855536), (2, 10927768), (4, 5463884), (8, 2731942), (16, 1365971), (641, 34096), (1282, 17048), (2131, 10256), (2564, 8524), (4262, 5128)]