20311515

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3793}}^1$

素因数の和:3828

約数の個数: 48

約数和(自身を含む): 42614208

約数和(自身を除く): 22302693

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3793, 5355, 11379, 18965, 26551, 34137, 56895, 64481, 79653, 132755, 170685, 193443, 238959, 322405, 398265, 451367, 580329, 967215, 1194795, 1354101, 2256835, 2901645, 4062303, 6770505, 20311515]

約数ペア:

[(1, 20311515), (3, 6770505), (5, 4062303), (7, 2901645), (9, 2256835), (15, 1354101), (17, 1194795), (21, 967215), (35, 580329), (45, 451367), (51, 398265), (63, 322405), (85, 238959), (105, 193443), (119, 170685), (153, 132755), (255, 79653), (315, 64481), (357, 56895), (595, 34137), (765, 26551), (1071, 18965), (1785, 11379), (3793, 5355)]