19955996

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{9431}}^1$

素因数の和:9481

約数の個数: 18

約数和(自身を含む): 36511272

約数和(自身を除く): 16555276

約数列:

[1, 2, 4, 23, 46, 92, 529, 1058, 2116, 9431, 18862, 37724, 216913, 433826, 867652, 4988999, 9977998, 19955996]

約数ペア:

[(1, 19955996), (2, 9977998), (4, 4988999), (23, 867652), (46, 433826), (92, 216913), (529, 37724), (1058, 18862), (2116, 9431)]