21092895

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9973}}^1$

素因数の和:10031

約数の個数: 24

約数和(自身を含む): 37342656

約数和(自身を除く): 16249761

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9973, 29919, 49865, 89757, 149595, 448785, 468731, 1406193, 2343655, 4218579, 7030965, 21092895]

約数ペア:

[(1, 21092895), (3, 7030965), (5, 4218579), (9, 2343655), (15, 1406193), (45, 468731), (47, 448785), (141, 149595), (235, 89757), (423, 49865), (705, 29919), (2115, 9973)]