21874909

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7151}}^1$

素因数の和:7200

約数の個数: 16

約数和(自身を含む): 27463680

約数和(自身を除く): 5588771

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 7151, 50057, 135869, 164473, 951083, 1151311, 3124987, 21874909]

約数ペア:

[(1, 21874909), (7, 3124987), (19, 1151311), (23, 951083), (133, 164473), (161, 135869), (437, 50057), (3059, 7151)]