218486538

素因数分解:

$2^1\times 3^3\times {\mathrm{157}}^1\times {\mathrm{25771}}^1$

素因数の和:25939

約数の個数: 32

約数和(自身を含む): 488637120

約数和(自身を除く): 270150582

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 157, 314, 471, 942, 1413, 2826, 4239, 8478, 25771, 51542, 77313, 154626, 231939, 463878, 695817, 1391634, 4046047, 8092094, 12138141, 24276282, 36414423, 72828846, 109243269, 218486538]

約数ペア:

[(1, 218486538), (2, 109243269), (3, 72828846), (6, 36414423), (9, 24276282), (18, 12138141), (27, 8092094), (54, 4046047), (157, 1391634), (314, 695817), (471, 463878), (942, 231939), (1413, 154626), (2826, 77313), (4239, 51542), (8478, 25771)]