20858817

素因数分解:

$3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{2477}}^1$

素因数の和:2888

約数の個数: 16

約数和(自身を含む): 31876992

約数和(自身を除く): 11018175

約数列:

[1, 3, 7, 21, 401, 1203, 2477, 2807, 7431, 8421, 17339, 52017, 993277, 2979831, 6952939, 20858817]

約数ペア:

[(1, 20858817), (3, 6952939), (7, 2979831), (21, 993277), (401, 52017), (1203, 17339), (2477, 8421), (2807, 7431)]