20000043

素因数分解:

$3^2\times 7^1\times {\mathrm{523}}^1\times {\mathrm{607}}^1$

素因数の和:1143

約数の個数: 24

約数和(自身を含む): 33133568

約数和(自身を除く): 13133525

約数列:

[1, 3, 7, 9, 21, 63, 523, 607, 1569, 1821, 3661, 4249, 4707, 5463, 10983, 12747, 32949, 38241, 317461, 952383, 2222227, 2857149, 6666681, 20000043]

約数ペア:

[(1, 20000043), (3, 6666681), (7, 2857149), (9, 2222227), (21, 952383), (63, 317461), (523, 38241), (607, 32949), (1569, 12747), (1821, 10983), (3661, 5463), (4249, 4707)]