21320103

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1193}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 34845696

約数和(自身を除く): 13525593

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 777, 851, 1193, 2553, 3579, 5957, 8351, 17871, 25053, 27439, 44141, 82317, 132423, 192073, 308987, 576219, 926961, 1015243, 3045729, 7106701, 21320103]

約数ペア:

[(1, 21320103), (3, 7106701), (7, 3045729), (21, 1015243), (23, 926961), (37, 576219), (69, 308987), (111, 192073), (161, 132423), (259, 82317), (483, 44141), (777, 27439), (851, 25053), (1193, 17871), (2553, 8351), (3579, 5957)]