21207135

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74411}}^1$

素因数の和:74438

約数の個数: 16

約数和(自身を含む): 35717760

約数和(自身を除く): 14510625

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 74411, 223233, 372055, 1116165, 1413809, 4241427, 7069045, 21207135]

約数ペア:

[(1, 21207135), (3, 7069045), (5, 4241427), (15, 1413809), (19, 1116165), (57, 372055), (95, 223233), (285, 74411)]