19968858

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:268

約数の個数: 96

約数和(自身を含む): 54302976

約数和(自身を除く): 34334118

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 73, 78, 91, 117, 126, 146, 167, 182, 219, 234, 273, 334, 438, 501, 511, 546, 657, 819, 949, 1002, 1022, 1169, 1314, 1503, 1533, 1638, 1898, 2171, 2338, 2847, 3006, 3066, 3507, 4342, 4599, 5694, 6513, 6643, 7014, 8541, 9198, 10521, 12191, 13026, 13286, 15197, 17082, 19539, 19929, 21042, 24382, 30394, 36573, 39078, 39858, 45591, 59787, 73146, 85337, 91182, 109719, 119574, 136773, 158483, 170674, 219438, 256011, 273546, 316966, 475449, 512022, 768033, 950898, 1109381, 1426347, 1536066, 2218762, 2852694, 3328143, 6656286, 9984429, 19968858]

約数ペア:

[(1, 19968858), (2, 9984429), (3, 6656286), (6, 3328143), (7, 2852694), (9, 2218762), (13, 1536066), (14, 1426347), (18, 1109381), (21, 950898), (26, 768033), (39, 512022), (42, 475449), (63, 316966), (73, 273546), (78, 256011), (91, 219438), (117, 170674), (126, 158483), (146, 136773), (167, 119574), (182, 109719), (219, 91182), (234, 85337), (273, 73146), (334, 59787), (438, 45591), (501, 39858), (511, 39078), (546, 36573), (657, 30394), (819, 24382), (949, 21042), (1002, 19929), (1022, 19539), (1169, 17082), (1314, 15197), (1503, 13286), (1533, 13026), (1638, 12191), (1898, 10521), (2171, 9198), (2338, 8541), (2847, 7014), (3006, 6643), (3066, 6513), (3507, 5694), (4342, 4599)]