20413954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{1823}}^1$

素因数の和:2345

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 13074686

約数列:

[1, 2, 11, 22, 509, 1018, 1823, 3646, 5599, 11198, 20053, 40106, 927907, 1855814, 10206977, 20413954]

約数ペア:

[(1, 20413954), (2, 10206977), (11, 1855814), (22, 927907), (509, 40106), (1018, 20053), (1823, 11198), (3646, 5599)]