21177130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{162901}}^1$

素因数の和:162921

約数の個数: 16

約数和(自身を含む): 41051304

約数和(自身を除く): 19874174

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 162901, 325802, 814505, 1629010, 2117713, 4235426, 10588565, 21177130]

約数ペア:

[(1, 21177130), (2, 10588565), (5, 4235426), (10, 2117713), (13, 1629010), (26, 814505), (65, 325802), (130, 162901)]