20766018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:619

約数の個数: 64

約数和(自身を含む): 51916032

約数和(自身を除く): 31150014

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 73, 78, 91, 146, 182, 219, 273, 438, 511, 521, 546, 949, 1022, 1042, 1533, 1563, 1898, 2847, 3066, 3126, 3647, 5694, 6643, 6773, 7294, 10941, 13286, 13546, 19929, 20319, 21882, 38033, 39858, 40638, 47411, 76066, 94822, 114099, 142233, 228198, 266231, 284466, 494429, 532462, 798693, 988858, 1483287, 1597386, 2966574, 3461003, 6922006, 10383009, 20766018]

約数ペア:

[(1, 20766018), (2, 10383009), (3, 6922006), (6, 3461003), (7, 2966574), (13, 1597386), (14, 1483287), (21, 988858), (26, 798693), (39, 532462), (42, 494429), (73, 284466), (78, 266231), (91, 228198), (146, 142233), (182, 114099), (219, 94822), (273, 76066), (438, 47411), (511, 40638), (521, 39858), (546, 38033), (949, 21882), (1022, 20319), (1042, 19929), (1533, 13546), (1563, 13286), (1898, 10941), (2847, 7294), (3066, 6773), (3126, 6643), (3647, 5694)]