19941507

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{421}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 30502160

約数和(自身を除く): 10560653

約数列:

[1, 3, 9, 19, 57, 171, 277, 421, 831, 1263, 2493, 3789, 5263, 7999, 15789, 23997, 47367, 71991, 116617, 349851, 1049553, 2215723, 6647169, 19941507]

約数ペア:

[(1, 19941507), (3, 6647169), (9, 2215723), (19, 1049553), (57, 349851), (171, 116617), (277, 71991), (421, 47367), (831, 23997), (1263, 15789), (2493, 7999), (3789, 5263)]