78868791

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{7561}}^1$

素因数の和:7647

約数の個数: 24

約数和(自身を含む): 121899440

約数和(自身を除く): 43030649

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 3477, 7561, 10431, 22683, 68049, 143659, 430977, 461221, 1292931, 1383663, 4150989, 8763199, 26289597, 78868791]

約数ペア:

[(1, 78868791), (3, 26289597), (9, 8763199), (19, 4150989), (57, 1383663), (61, 1292931), (171, 461221), (183, 430977), (549, 143659), (1159, 68049), (3477, 22683), (7561, 10431)]