221874381

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{653}}^1\times {\mathrm{1987}}^1$

素因数の和:2665

約数の個数: 24

約数和(自身を含む): 338039520

約数和(自身を除く): 116165139

約数列:

[1, 3, 9, 19, 57, 171, 653, 1959, 1987, 5877, 5961, 12407, 17883, 37221, 37753, 111663, 113259, 339777, 1297511, 3892533, 11677599, 24652709, 73958127, 221874381]

約数ペア:

[(1, 221874381), (3, 73958127), (9, 24652709), (19, 11677599), (57, 3892533), (171, 1297511), (653, 339777), (1959, 113259), (1987, 111663), (5877, 37753), (5961, 37221), (12407, 17883)]