42780447

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{11399}}^1$

素因数の和:11547

約数の個数: 16

約数和(自身を含む): 63840000

約数和(自身を除く): 21059553

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 11399, 34197, 102591, 307773, 1584461, 4753383, 14260149, 42780447]

約数ペア:

[(1, 42780447), (3, 14260149), (9, 4753383), (27, 1584461), (139, 307773), (417, 102591), (1251, 34197), (3753, 11399)]