52720521

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 86184000

約数和(自身を除く): 33463479

約数列:

[1, 3, 7, 21, 29, 49, 83, 87, 147, 149, 203, 249, 447, 581, 609, 1043, 1421, 1743, 2407, 3129, 4067, 4263, 4321, 7221, 7301, 12201, 12367, 12963, 16849, 21903, 30247, 37101, 50547, 86569, 90741, 117943, 211729, 259707, 353829, 358643, 605983, 635187, 1075929, 1817949, 2510501, 7531503, 17573507, 52720521]

約数ペア:

[(1, 52720521), (3, 17573507), (7, 7531503), (21, 2510501), (29, 1817949), (49, 1075929), (83, 635187), (87, 605983), (147, 358643), (149, 353829), (203, 259707), (249, 211729), (447, 117943), (581, 90741), (609, 86569), (1043, 50547), (1421, 37101), (1743, 30247), (2407, 21903), (3129, 16849), (4067, 12963), (4263, 12367), (4321, 12201), (7221, 7301)]