20788794

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1217}}^1$

素因数の和:1311

約数の個数: 48

約数和(自身を含む): 49212072

約数和(自身を除く): 28423278

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 73, 78, 117, 146, 219, 234, 438, 657, 949, 1217, 1314, 1898, 2434, 2847, 3651, 5694, 7302, 8541, 10953, 15821, 17082, 21906, 31642, 47463, 88841, 94926, 142389, 177682, 266523, 284778, 533046, 799569, 1154933, 1599138, 2309866, 3464799, 6929598, 10394397, 20788794]

約数ペア:

[(1, 20788794), (2, 10394397), (3, 6929598), (6, 3464799), (9, 2309866), (13, 1599138), (18, 1154933), (26, 799569), (39, 533046), (73, 284778), (78, 266523), (117, 177682), (146, 142389), (219, 94926), (234, 88841), (438, 47463), (657, 31642), (949, 21906), (1217, 17082), (1314, 15821), (1898, 10953), (2434, 8541), (2847, 7302), (3651, 5694)]