21145119

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^2$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 31213440

約数和(自身を除く): 10068321

約数列:

[1, 3, 19, 23, 57, 69, 127, 381, 437, 1311, 2413, 2921, 7239, 8763, 16129, 48387, 55499, 166497, 306451, 370967, 919353, 1112901, 7048373, 21145119]

約数ペア:

[(1, 21145119), (3, 7048373), (19, 1112901), (23, 919353), (57, 370967), (69, 306451), (127, 166497), (381, 55499), (437, 48387), (1311, 16129), (2413, 8763), (2921, 7239)]