21759129

素因数分解:

$3^2\times 7^1\times {\mathrm{569}}^1\times {\mathrm{607}}^1$

素因数の和:1189

約数の個数: 24

約数和(自身を含む): 36042240

約数和(自身を除く): 14283111

約数列:

[1, 3, 7, 9, 21, 63, 569, 607, 1707, 1821, 3983, 4249, 5121, 5463, 11949, 12747, 35847, 38241, 345383, 1036149, 2417681, 3108447, 7253043, 21759129]

約数ペア:

[(1, 21759129), (3, 7253043), (7, 3108447), (9, 2417681), (21, 1036149), (63, 345383), (569, 38241), (607, 35847), (1707, 12747), (1821, 11949), (3983, 5463), (4249, 5121)]