21430330

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{27127}}^1$

素因数の和:27213

約数の個数: 16

約数和(自身を含む): 39064320

約数和(自身を除く): 17633990

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 27127, 54254, 135635, 271270, 2143033, 4286066, 10715165, 21430330]

約数ペア:

[(1, 21430330), (2, 10715165), (5, 4286066), (10, 2143033), (79, 271270), (158, 135635), (395, 54254), (790, 27127)]