21251769

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 35582976

約数和(自身を除く): 14331207

約数列:

[1, 3, 7, 11, 21, 33, 77, 197, 231, 467, 591, 1379, 1401, 2167, 3269, 4137, 5137, 6501, 9807, 15169, 15411, 35959, 45507, 91999, 107877, 275997, 643993, 1011989, 1931979, 3035967, 7083923, 21251769]

約数ペア:

[(1, 21251769), (3, 7083923), (7, 3035967), (11, 1931979), (21, 1011989), (33, 643993), (77, 275997), (197, 107877), (231, 91999), (467, 45507), (591, 35959), (1379, 15411), (1401, 15169), (2167, 9807), (3269, 6501), (4137, 5137)]