19843084

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 35456400

約数和(自身を除く): 15613316

約数列:

[1, 2, 4, 89, 139, 178, 278, 356, 401, 556, 802, 1604, 12371, 24742, 35689, 49484, 55739, 71378, 111478, 142756, 222956, 4960771, 9921542, 19843084]

約数ペア:

[(1, 19843084), (2, 9921542), (4, 4960771), (89, 222956), (139, 142756), (178, 111478), (278, 71378), (356, 55739), (401, 49484), (556, 35689), (802, 24742), (1604, 12371)]