20246989

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 25804800

約数和(自身を除く): 5557811

約数列:

[1, 7, 19, 41, 47, 79, 133, 287, 329, 553, 779, 893, 1501, 1927, 3239, 3713, 5453, 6251, 10507, 13489, 22673, 25991, 36613, 61541, 70547, 152233, 256291, 430787, 493829, 1065631, 2892427, 20246989]

約数ペア:

[(1, 20246989), (7, 2892427), (19, 1065631), (41, 493829), (47, 430787), (79, 256291), (133, 152233), (287, 70547), (329, 61541), (553, 36613), (779, 25991), (893, 22673), (1501, 13489), (1927, 10507), (3239, 6251), (3713, 5453)]