20193985

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3821}}^1$

素因数の和:3984

約数の個数: 16

約数和(自身を含む): 27885312

約数和(自身を除く): 7691327

約数列:

[1, 5, 7, 35, 151, 755, 1057, 3821, 5285, 19105, 26747, 133735, 576971, 2884855, 4038797, 20193985]

約数ペア:

[(1, 20193985), (5, 4038797), (7, 2884855), (35, 576971), (151, 133735), (755, 26747), (1057, 19105), (3821, 5285)]