216801

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 360360

約数和(自身を除く): 143559

約数列:

[1, 3, 9, 13, 17, 39, 51, 109, 117, 153, 221, 327, 663, 981, 1417, 1853, 1989, 4251, 5559, 12753, 16677, 24089, 72267, 216801]

約数ペア:

[(1, 216801), (3, 72267), (9, 24089), (13, 16677), (17, 12753), (39, 5559), (51, 4251), (109, 1989), (117, 1853), (153, 1417), (221, 981), (327, 663)]