21200848

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1171

約数の個数: 40

約数和(自身を含む): 43711488

約数和(自身を除く): 22510640

約数列:

[1, 2, 4, 8, 16, 23, 46, 53, 92, 106, 184, 212, 368, 424, 848, 1087, 1219, 2174, 2438, 4348, 4876, 8696, 9752, 17392, 19504, 25001, 50002, 57611, 100004, 115222, 200008, 230444, 400016, 460888, 921776, 1325053, 2650106, 5300212, 10600424, 21200848]

約数ペア:

[(1, 21200848), (2, 10600424), (4, 5300212), (8, 2650106), (16, 1325053), (23, 921776), (46, 460888), (53, 400016), (92, 230444), (106, 200008), (184, 115222), (212, 100004), (368, 57611), (424, 50002), (848, 25001), (1087, 19504), (1219, 17392), (2174, 9752), (2438, 8696), (4348, 4876)]