21223433

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2729}}^1$

素因数の和:2848

約数の個数: 16

約数和(自身を含む): 26732160

約数和(自身を除く): 5508727

約数列:

[1, 7, 11, 77, 101, 707, 1111, 2729, 7777, 19103, 30019, 210133, 275629, 1929403, 3031919, 21223433]

約数ペア:

[(1, 21223433), (7, 3031919), (11, 1929403), (77, 275629), (101, 210133), (707, 30019), (1111, 19103), (2729, 7777)]