7881471

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 13208832

約数和(自身を除く): 5327361

約数列:

[1, 3, 9, 13, 31, 39, 41, 53, 93, 117, 123, 159, 279, 369, 403, 477, 533, 689, 1209, 1271, 1599, 1643, 2067, 2173, 3627, 3813, 4797, 4929, 6201, 6519, 11439, 14787, 16523, 19557, 21359, 28249, 49569, 64077, 67363, 84747, 148707, 192231, 202089, 254241, 606267, 875719, 2627157, 7881471]

約数ペア:

[(1, 7881471), (3, 2627157), (9, 875719), (13, 606267), (31, 254241), (39, 202089), (41, 192231), (53, 148707), (93, 84747), (117, 67363), (123, 64077), (159, 49569), (279, 28249), (369, 21359), (403, 19557), (477, 16523), (533, 14787), (689, 11439), (1209, 6519), (1271, 6201), (1599, 4929), (1643, 4797), (2067, 3813), (2173, 3627)]