19954156

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2437}}^1$

素因数の和:2553

約数の個数: 24

約数和(自身を含む): 36862560

約数和(自身を除く): 16908404

約数列:

[1, 2, 4, 23, 46, 89, 92, 178, 356, 2047, 2437, 4094, 4874, 8188, 9748, 56051, 112102, 216893, 224204, 433786, 867572, 4988539, 9977078, 19954156]

約数ペア:

[(1, 19954156), (2, 9977078), (4, 4988539), (23, 867572), (46, 433786), (89, 224204), (92, 216893), (178, 112102), (356, 56051), (2047, 9748), (2437, 8188), (4094, 4874)]