20408531

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3319}}^1$

素因数の和:3386

約数の個数: 16

約数和(自身を含む): 24541440

約数和(自身を除く): 4132909

約数列:

[1, 11, 13, 43, 143, 473, 559, 3319, 6149, 36509, 43147, 142717, 474617, 1569887, 1855321, 20408531]

約数ペア:

[(1, 20408531), (11, 1855321), (13, 1569887), (43, 474617), (143, 142717), (473, 43147), (559, 36509), (3319, 6149)]