25220391

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2039}}^1$

素因数の和:2099

約数の個数: 32

約数和(自身を含む): 41779200

約数和(自身を除く): 16558809

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1767, 2039, 4123, 6117, 12369, 14273, 38741, 42819, 63209, 116223, 189627, 271187, 442463, 813561, 1200971, 1327389, 3602913, 8406797, 25220391]

約数ペア:

[(1, 25220391), (3, 8406797), (7, 3602913), (19, 1327389), (21, 1200971), (31, 813561), (57, 442463), (93, 271187), (133, 189627), (217, 116223), (399, 63209), (589, 42819), (651, 38741), (1767, 14273), (2039, 12369), (4123, 6117)]