21896045

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1780

約数の個数: 16

約数和(自身を含む): 27381888

約数和(自身を除く): 5485843

約数列:

[1, 5, 37, 71, 185, 355, 1667, 2627, 8335, 13135, 61679, 118357, 308395, 591785, 4379209, 21896045]

約数ペア:

[(1, 21896045), (5, 4379209), (37, 591785), (71, 308395), (185, 118357), (355, 61679), (1667, 13135), (2627, 8335)]