720242019

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{90019}}^1$

素因数の和:90159

約数の個数: 24

約数和(自身を含む): 1198346240

約数和(自身を除く): 478104221

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 8001, 90019, 270057, 630133, 810171, 1890399, 5671197, 11432413, 34297239, 80026891, 102891717, 240080673, 720242019]

約数ペア:

[(1, 720242019), (3, 240080673), (7, 102891717), (9, 80026891), (21, 34297239), (63, 11432413), (127, 5671197), (381, 1890399), (889, 810171), (1143, 630133), (2667, 270057), (8001, 90019)]