20090372

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{13913}}^1$

素因数の和:13955

約数の個数: 18

約数和(自身を含む): 37108638

約数和(自身を除く): 17018266

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 13913, 27826, 55652, 264347, 528694, 1057388, 5022593, 10045186, 20090372]

約数ペア:

[(1, 20090372), (2, 10045186), (4, 5022593), (19, 1057388), (38, 528694), (76, 264347), (361, 55652), (722, 27826), (1444, 13913)]