21149512

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{839}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20581688

約数列:

[1, 2, 4, 8, 23, 46, 92, 137, 184, 274, 548, 839, 1096, 1678, 3151, 3356, 6302, 6712, 12604, 19297, 25208, 38594, 77188, 114943, 154376, 229886, 459772, 919544, 2643689, 5287378, 10574756, 21149512]

約数ペア:

[(1, 21149512), (2, 10574756), (4, 5287378), (8, 2643689), (23, 919544), (46, 459772), (92, 229886), (137, 154376), (184, 114943), (274, 77188), (548, 38594), (839, 25208), (1096, 19297), (1678, 12604), (3151, 6712), (3356, 6302)]