19904335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9781}}^1$

素因数の和:9834

約数の個数: 16

約数和(自身を含む): 26763552

約数和(自身を除く): 6859217

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 9781, 48905, 107591, 361897, 537955, 1809485, 3980867, 19904335]

約数ペア:

[(1, 19904335), (5, 3980867), (11, 1809485), (37, 537955), (55, 361897), (185, 107591), (407, 48905), (2035, 9781)]