77881779

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{23971}}^1$

素因数の和:24015

約数の個数: 18

約数和(自身を含む): 118733316

約数和(自身を除く): 40851537

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 23971, 71913, 215739, 455449, 1366347, 4099041, 8653531, 25960593, 77881779]

約数ペア:

[(1, 77881779), (3, 25960593), (9, 8653531), (19, 4099041), (57, 1366347), (171, 455449), (361, 215739), (1083, 71913), (3249, 23971)]