21135693

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1\times {\mathrm{641}}^1$

素因数の和:1052

約数の個数: 16

約数和(自身を含む): 29275200

約数和(自身を除く): 8139507

約数列:

[1, 3, 29, 87, 379, 641, 1137, 1923, 10991, 18589, 32973, 55767, 242939, 728817, 7045231, 21135693]

約数ペア:

[(1, 21135693), (3, 7045231), (29, 728817), (87, 242939), (379, 55767), (641, 32973), (1137, 18589), (1923, 10991)]