21409136

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8311}}^1$

素因数の和:8349

約数の個数: 40

約数和(自身を含む): 49473024

約数和(自身を除く): 28063888

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8311, 16622, 33244, 58177, 66488, 116354, 132976, 191153, 232708, 382306, 465416, 764612, 930832, 1338071, 1529224, 2676142, 3058448, 5352284, 10704568, 21409136]

約数ペア:

[(1, 21409136), (2, 10704568), (4, 5352284), (7, 3058448), (8, 2676142), (14, 1529224), (16, 1338071), (23, 930832), (28, 764612), (46, 465416), (56, 382306), (92, 232708), (112, 191153), (161, 132976), (184, 116354), (322, 66488), (368, 58177), (644, 33244), (1288, 16622), (2576, 8311)]