81419997

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{2161}}^1$

素因数の和:2844

約数の個数: 16

約数和(自身を含む): 114499520

約数和(自身を除く): 33079523

約数列:

[1, 3, 19, 57, 661, 1983, 2161, 6483, 12559, 37677, 41059, 123177, 1428421, 4285263, 27139999, 81419997]

約数ペア:

[(1, 81419997), (3, 27139999), (19, 4285263), (57, 1428421), (661, 123177), (1983, 41059), (2161, 37677), (6483, 12559)]