21287098

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66109}}^1$

素因数の和:66141

約数の個数: 16

約数和(自身を含む): 38079360

約数和(自身を除く): 16792262

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66109, 132218, 462763, 925526, 1520507, 3041014, 10643549, 21287098]

約数ペア:

[(1, 21287098), (2, 10643549), (7, 3041014), (14, 1520507), (23, 925526), (46, 462763), (161, 132218), (322, 66109)]