215656413

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{15971}}^1$

素因数の和:16624

約数の個数: 16

約数和(自身を含む): 329150976

約数和(自身を除く): 113494563

約数列:

[1, 3, 7, 21, 643, 1929, 4501, 13503, 15971, 47913, 111797, 335391, 10269353, 30808059, 71885471, 215656413]

約数ペア:

[(1, 215656413), (3, 71885471), (7, 30808059), (21, 10269353), (643, 335391), (1929, 111797), (4501, 47913), (13503, 15971)]