281199867

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{19973}}^1$

素因数の和:20027

約数の個数: 24

約数和(自身を含む): 426165264

約数和(自身を除く): 144965397

約数列:

[1, 3, 13, 19, 39, 57, 247, 361, 741, 1083, 4693, 14079, 19973, 59919, 259649, 379487, 778947, 1138461, 4933331, 7210253, 14799993, 21630759, 93733289, 281199867]

約数ペア:

[(1, 281199867), (3, 93733289), (13, 21630759), (19, 14799993), (39, 7210253), (57, 4933331), (247, 1138461), (361, 778947), (741, 379487), (1083, 259649), (4693, 59919), (14079, 19973)]