21581176

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2213}}^1$

素因数の和:2295

約数の個数: 32

約数和(自身を含む): 43040160

約数和(自身を除く): 21458984

約数列:

[1, 2, 4, 8, 23, 46, 53, 92, 106, 184, 212, 424, 1219, 2213, 2438, 4426, 4876, 8852, 9752, 17704, 50899, 101798, 117289, 203596, 234578, 407192, 469156, 938312, 2697647, 5395294, 10790588, 21581176]

約数ペア:

[(1, 21581176), (2, 10790588), (4, 5395294), (8, 2697647), (23, 938312), (46, 469156), (53, 407192), (92, 234578), (106, 203596), (184, 117289), (212, 101798), (424, 50899), (1219, 17704), (2213, 9752), (2438, 8852), (4426, 4876)]