21480264

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:511

約数の個数: 96

約数和(自身を含む): 63980280

約数和(自身を除く): 42500016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 53, 72, 78, 104, 106, 117, 156, 159, 212, 234, 312, 318, 424, 433, 468, 477, 636, 689, 866, 936, 954, 1272, 1299, 1378, 1732, 1908, 2067, 2598, 2756, 3464, 3816, 3897, 4134, 5196, 5512, 5629, 6201, 7794, 8268, 10392, 11258, 12402, 15588, 16536, 16887, 22516, 22949, 24804, 31176, 33774, 45032, 45898, 49608, 50661, 67548, 68847, 91796, 101322, 135096, 137694, 183592, 202644, 206541, 275388, 298337, 405288, 413082, 550776, 596674, 826164, 895011, 1193348, 1652328, 1790022, 2386696, 2685033, 3580044, 5370066, 7160088, 10740132, 21480264]

約数ペア:

[(1, 21480264), (2, 10740132), (3, 7160088), (4, 5370066), (6, 3580044), (8, 2685033), (9, 2386696), (12, 1790022), (13, 1652328), (18, 1193348), (24, 895011), (26, 826164), (36, 596674), (39, 550776), (52, 413082), (53, 405288), (72, 298337), (78, 275388), (104, 206541), (106, 202644), (117, 183592), (156, 137694), (159, 135096), (212, 101322), (234, 91796), (312, 68847), (318, 67548), (424, 50661), (433, 49608), (468, 45898), (477, 45032), (636, 33774), (689, 31176), (866, 24804), (936, 22949), (954, 22516), (1272, 16887), (1299, 16536), (1378, 15588), (1732, 12402), (1908, 11258), (2067, 10392), (2598, 8268), (2756, 7794), (3464, 6201), (3816, 5629), (3897, 5512), (4134, 5196)]