21602259

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18047}}^1$

素因数の和:18079

約数の個数: 24

約数和(自身を含む): 37539840

約数和(自身を除く): 15937581

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 18047, 54141, 126329, 162423, 342893, 378987, 1028679, 1136961, 2400251, 3086037, 7200753, 21602259]

約数ペア:

[(1, 21602259), (3, 7200753), (7, 3086037), (9, 2400251), (19, 1136961), (21, 1028679), (57, 378987), (63, 342893), (133, 162423), (171, 126329), (399, 54141), (1197, 18047)]