21083391

素因数分解:

$3^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{883}}^1$

素因数の和:1275

約数の個数: 24

約数和(自身を含む): 34935680

約数和(自身を除く): 13852289

約数列:

[1, 3, 7, 9, 21, 63, 379, 883, 1137, 2649, 2653, 3411, 6181, 7947, 7959, 18543, 23877, 55629, 334657, 1003971, 2342599, 3011913, 7027797, 21083391]

約数ペア:

[(1, 21083391), (3, 7027797), (7, 3011913), (9, 2342599), (21, 1003971), (63, 334657), (379, 55629), (883, 23877), (1137, 18543), (2649, 7959), (2653, 7947), (3411, 6181)]