21394401

素因数分解:

$3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{2269}}^1$

素因数の和:2728

約数の個数: 16

約数和(自身を含む): 32688000

約数和(自身を除く): 11293599

約数列:

[1, 3, 7, 21, 449, 1347, 2269, 3143, 6807, 9429, 15883, 47649, 1018781, 3056343, 7131467, 21394401]

約数ペア:

[(1, 21394401), (3, 7131467), (7, 3056343), (21, 1018781), (449, 47649), (1347, 15883), (2269, 9429), (3143, 6807)]