21842191

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 27702000

約数和(自身を除く): 5859809

約数列:

[1, 7, 19, 29, 49, 133, 203, 551, 809, 931, 1421, 3857, 5663, 15371, 23461, 26999, 39641, 107597, 164227, 445759, 753179, 1149589, 3120313, 21842191]

約数ペア:

[(1, 21842191), (7, 3120313), (19, 1149589), (29, 753179), (49, 445759), (133, 164227), (203, 107597), (551, 39641), (809, 26999), (931, 23461), (1421, 15371), (3857, 5663)]