20574855

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 96

約数和(自身を含む): 43929600

約数和(自身を除く): 23354745

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 43, 45, 49, 63, 93, 105, 129, 147, 155, 215, 217, 245, 279, 301, 315, 343, 387, 441, 465, 645, 651, 735, 903, 1029, 1085, 1333, 1395, 1505, 1519, 1715, 1935, 1953, 2107, 2205, 2709, 3087, 3255, 3999, 4515, 4557, 5145, 6321, 6665, 7595, 9331, 9765, 10535, 10633, 11997, 13545, 13671, 14749, 15435, 18963, 19995, 22785, 27993, 31605, 31899, 44247, 46655, 53165, 59985, 65317, 68355, 73745, 83979, 94815, 95697, 132741, 139965, 159495, 195951, 221235, 326585, 419895, 457219, 478485, 587853, 663705, 979755, 1371657, 2286095, 2939265, 4114971, 6858285, 20574855]

約数ペア:

[(1, 20574855), (3, 6858285), (5, 4114971), (7, 2939265), (9, 2286095), (15, 1371657), (21, 979755), (31, 663705), (35, 587853), (43, 478485), (45, 457219), (49, 419895), (63, 326585), (93, 221235), (105, 195951), (129, 159495), (147, 139965), (155, 132741), (215, 95697), (217, 94815), (245, 83979), (279, 73745), (301, 68355), (315, 65317), (343, 59985), (387, 53165), (441, 46655), (465, 44247), (645, 31899), (651, 31605), (735, 27993), (903, 22785), (1029, 19995), (1085, 18963), (1333, 15435), (1395, 14749), (1505, 13671), (1519, 13545), (1715, 11997), (1935, 10633), (1953, 10535), (2107, 9765), (2205, 9331), (2709, 7595), (3087, 6665), (3255, 6321), (3999, 5145), (4515, 4557)]