21558544

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8369}}^1$

素因数の和:8407

約数の個数: 40

約数和(自身を含む): 49818240

約数和(自身を除く): 28259696

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8369, 16738, 33476, 58583, 66952, 117166, 133904, 192487, 234332, 384974, 468664, 769948, 937328, 1347409, 1539896, 2694818, 3079792, 5389636, 10779272, 21558544]

約数ペア:

[(1, 21558544), (2, 10779272), (4, 5389636), (7, 3079792), (8, 2694818), (14, 1539896), (16, 1347409), (23, 937328), (28, 769948), (46, 468664), (56, 384974), (92, 234332), (112, 192487), (161, 133904), (184, 117166), (322, 66952), (368, 58583), (644, 33476), (1288, 16738), (2576, 8369)]