18893217

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2137}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 28871552

約数和(自身を除く): 9978335

約数列:

[1, 3, 7, 21, 421, 1263, 2137, 2947, 6411, 8841, 14959, 44877, 899677, 2699031, 6297739, 18893217]

約数ペア:

[(1, 18893217), (3, 6297739), (7, 2699031), (21, 899677), (421, 44877), (1263, 14959), (2137, 8841), (2947, 6411)]