20718474

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3709}}^1$

素因数の和:3747

約数の個数: 48

約数和(自身を含む): 50752800

約数和(自身を除く): 30034326

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 266, 294, 399, 798, 931, 1862, 2793, 3709, 5586, 7418, 11127, 22254, 25963, 51926, 70471, 77889, 140942, 155778, 181741, 211413, 363482, 422826, 493297, 545223, 986594, 1090446, 1479891, 2959782, 3453079, 6906158, 10359237, 20718474]

約数ペア:

[(1, 20718474), (2, 10359237), (3, 6906158), (6, 3453079), (7, 2959782), (14, 1479891), (19, 1090446), (21, 986594), (38, 545223), (42, 493297), (49, 422826), (57, 363482), (98, 211413), (114, 181741), (133, 155778), (147, 140942), (266, 77889), (294, 70471), (399, 51926), (798, 25963), (931, 22254), (1862, 11127), (2793, 7418), (3709, 5586)]