20728026

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:368

約数の個数: 72

約数和(自身を含む): 51123072

約数和(自身を除く): 30395046

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 31, 33, 62, 66, 93, 99, 121, 186, 198, 242, 279, 307, 341, 363, 558, 614, 682, 726, 921, 1023, 1089, 1842, 2046, 2178, 2763, 3069, 3377, 3751, 5526, 6138, 6754, 7502, 9517, 10131, 11253, 19034, 20262, 22506, 28551, 30393, 33759, 37147, 57102, 60786, 67518, 74294, 85653, 104687, 111441, 171306, 209374, 222882, 314061, 334323, 628122, 668646, 942183, 1151557, 1884366, 2303114, 3454671, 6909342, 10364013, 20728026]

約数ペア:

[(1, 20728026), (2, 10364013), (3, 6909342), (6, 3454671), (9, 2303114), (11, 1884366), (18, 1151557), (22, 942183), (31, 668646), (33, 628122), (62, 334323), (66, 314061), (93, 222882), (99, 209374), (121, 171306), (186, 111441), (198, 104687), (242, 85653), (279, 74294), (307, 67518), (341, 60786), (363, 57102), (558, 37147), (614, 33759), (682, 30393), (726, 28551), (921, 22506), (1023, 20262), (1089, 19034), (1842, 11253), (2046, 10131), (2178, 9517), (2763, 7502), (3069, 6754), (3377, 6138), (3751, 5526)]