21091443

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1367}}^1$

素因数の和:1546

約数の個数: 16

約数和(自身を含む): 29111040

約数和(自身を除く): 8019597

約数列:

[1, 3, 37, 111, 139, 417, 1367, 4101, 5143, 15429, 50579, 151737, 190013, 570039, 7030481, 21091443]

約数ペア:

[(1, 21091443), (3, 7030481), (37, 570039), (111, 190013), (139, 151737), (417, 50579), (1367, 15429), (4101, 5143)]