19976588

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:553

約数の個数: 24

約数和(自身を含む): 35625744

約数和(自身を除く): 15649156

約数列:

[1, 2, 4, 101, 197, 202, 251, 394, 404, 502, 788, 1004, 19897, 25351, 39794, 49447, 50702, 79588, 98894, 101404, 197788, 4994147, 9988294, 19976588]

約数ペア:

[(1, 19976588), (2, 9988294), (4, 4994147), (101, 197788), (197, 101404), (202, 98894), (251, 79588), (394, 50702), (404, 49447), (502, 39794), (788, 25351), (1004, 19897)]