21103119

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{5623}}^1$

素因数の和:5771

約数の個数: 16

約数和(自身を含む): 31494400

約数和(自身を除く): 10391281

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 5623, 16869, 50607, 151821, 781597, 2344791, 7034373, 21103119]

約数ペア:

[(1, 21103119), (3, 7034373), (9, 2344791), (27, 781597), (139, 151821), (417, 50607), (1251, 16869), (3753, 5623)]