20854491

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43177}}^1$

素因数の和:43210

約数の個数: 16

約数和(自身を含む): 33160704

約数和(自身を除く): 12306213

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43177, 129531, 302239, 906717, 993071, 2979213, 6951497, 20854491]

約数ペア:

[(1, 20854491), (3, 6951497), (7, 2979213), (21, 993071), (23, 906717), (69, 302239), (161, 129531), (483, 43177)]