21726691

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1697}}^1$

素因数の和:1794

約数の個数: 16

約数和(自身を含む): 26081280

約数和(自身を除く): 4354589

約数列:

[1, 7, 31, 59, 217, 413, 1697, 1829, 11879, 12803, 52607, 100123, 368249, 700861, 3103813, 21726691]

約数ペア:

[(1, 21726691), (7, 3103813), (31, 700861), (59, 368249), (217, 100123), (413, 52607), (1697, 12803), (1829, 11879)]