21458472

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 63529920

約数和(自身を除く): 42071448

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 71, 84, 98, 142, 147, 168, 196, 213, 257, 284, 294, 392, 426, 497, 514, 568, 588, 771, 852, 994, 1028, 1176, 1491, 1542, 1704, 1799, 1988, 2056, 2982, 3084, 3479, 3598, 3976, 5397, 5964, 6168, 6958, 7196, 10437, 10794, 11928, 12593, 13916, 14392, 18247, 20874, 21588, 25186, 27832, 36494, 37779, 41748, 43176, 50372, 54741, 72988, 75558, 83496, 100744, 109482, 127729, 145976, 151116, 218964, 255458, 302232, 383187, 437928, 510916, 766374, 894103, 1021832, 1532748, 1788206, 2682309, 3065496, 3576412, 5364618, 7152824, 10729236, 21458472]

約数ペア:

[(1, 21458472), (2, 10729236), (3, 7152824), (4, 5364618), (6, 3576412), (7, 3065496), (8, 2682309), (12, 1788206), (14, 1532748), (21, 1021832), (24, 894103), (28, 766374), (42, 510916), (49, 437928), (56, 383187), (71, 302232), (84, 255458), (98, 218964), (142, 151116), (147, 145976), (168, 127729), (196, 109482), (213, 100744), (257, 83496), (284, 75558), (294, 72988), (392, 54741), (426, 50372), (497, 43176), (514, 41748), (568, 37779), (588, 36494), (771, 27832), (852, 25186), (994, 21588), (1028, 20874), (1176, 18247), (1491, 14392), (1542, 13916), (1704, 12593), (1799, 11928), (1988, 10794), (2056, 10437), (2982, 7196), (3084, 6958), (3479, 6168), (3598, 5964), (3976, 5397)]