21449918

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25117}}^1$

素因数の和:25187

約数の個数: 16

約数和(自身を含む): 37375584

約数和(自身を除く): 15925666

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 25117, 50234, 175819, 351638, 1532137, 3064274, 10724959, 21449918]

約数ペア:

[(1, 21449918), (2, 10724959), (7, 3064274), (14, 1532137), (61, 351638), (122, 175819), (427, 50234), (854, 25117)]