21467965

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3221}}^1$

素因数の和:3300

約数の個数: 16

約数和(自身を含む): 27219456

約数和(自身を除く): 5751491

約数列:

[1, 5, 31, 43, 155, 215, 1333, 3221, 6665, 16105, 99851, 138503, 499255, 692515, 4293593, 21467965]

約数ペア:

[(1, 21467965), (5, 4293593), (31, 692515), (43, 499255), (155, 138503), (215, 99851), (1333, 16105), (3221, 6665)]