19902949

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 22415616

約数和(自身を除く): 2512667

約数列:

[1, 11, 47, 137, 281, 517, 1507, 3091, 6439, 13207, 38497, 70829, 145277, 423467, 1809359, 19902949]

約数ペア:

[(1, 19902949), (11, 1809359), (47, 423467), (137, 145277), (281, 70829), (517, 38497), (1507, 13207), (3091, 6439)]