78321621

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{61141}}^1$

素因数の和:61212

約数の個数: 16

約数和(自身を含む): 121305728

約数和(自身を除く): 42984107

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 61141, 183423, 427987, 1283961, 3729601, 11188803, 26107207, 78321621]

約数ペア:

[(1, 78321621), (3, 26107207), (7, 11188803), (21, 3729601), (61, 1283961), (183, 427987), (427, 183423), (1281, 61141)]