21051224

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71119}}^1$

素因数の和:71162

約数の個数: 16

約数和(自身を含む): 40538400

約数和(自身を除く): 19487176

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 71119, 142238, 284476, 568952, 2631403, 5262806, 10525612, 21051224]

約数ペア:

[(1, 21051224), (2, 10525612), (4, 5262806), (8, 2631403), (37, 568952), (74, 284476), (148, 142238), (296, 71119)]