21672813

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4397}}^1$

素因数の和:4484

約数の個数: 16

約数和(自身を含む): 30398976

約数和(自身を除く): 8726163

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4397, 4929, 13191, 136307, 233041, 408921, 699123, 7224271, 21672813]

約数ペア:

[(1, 21672813), (3, 7224271), (31, 699123), (53, 408921), (93, 233041), (159, 136307), (1643, 13191), (4397, 4929)]