19878453

素因数分解:

$3^4\times 7^1\times {\mathrm{35059}}^1$

素因数の和:35078

約数の個数: 20

約数和(自身を含む): 33938080

約数和(自身を除く): 14059627

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 35059, 105177, 245413, 315531, 736239, 946593, 2208717, 2839779, 6626151, 19878453]

約数ペア:

[(1, 19878453), (3, 6626151), (7, 2839779), (9, 2208717), (21, 946593), (27, 736239), (63, 315531), (81, 245413), (189, 105177), (567, 35059)]