21989398

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{4937}}^1$

素因数の和:5087

約数の個数: 16

約数和(自身を含む): 35198064

約数和(自身を除く): 13208666

約数列:

[1, 2, 17, 34, 131, 262, 2227, 4454, 4937, 9874, 83929, 167858, 646747, 1293494, 10994699, 21989398]

約数ペア:

[(1, 21989398), (2, 10994699), (17, 1293494), (34, 646747), (131, 167858), (262, 83929), (2227, 9874), (4454, 4937)]