20867236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2887}}^1$

素因数の和:3043

約数の個数: 24

約数和(自身を含む): 39623360

約数和(自身を除く): 18756124

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2887, 3614, 5774, 7228, 11548, 37531, 75062, 150124, 401293, 802586, 1605172, 5216809, 10433618, 20867236]

約数ペア:

[(1, 20867236), (2, 10433618), (4, 5216809), (13, 1605172), (26, 802586), (52, 401293), (139, 150124), (278, 75062), (556, 37531), (1807, 11548), (2887, 7228), (3614, 5774)]