20211554881

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{9007}}^1$

素因数の和:9313

約数の個数: 32

約数和(自身を含む): 24827489280

約数和(自身を除く): 4615934399

約数列:

[1, 7, 17, 109, 119, 173, 763, 1211, 1853, 2941, 9007, 12971, 18857, 20587, 63049, 131999, 153119, 320569, 981763, 1071833, 1558211, 2243983, 6872341, 10907477, 16689971, 26489587, 116829797, 169844999, 185427109, 1188914993, 2887364983, 20211554881]

約数ペア:

[(1, 20211554881), (7, 2887364983), (17, 1188914993), (109, 185427109), (119, 169844999), (173, 116829797), (763, 26489587), (1211, 16689971), (1853, 10907477), (2941, 6872341), (9007, 2243983), (12971, 1558211), (18857, 1071833), (20587, 981763), (63049, 320569), (131999, 153119)]