13965665

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21001}}^1$

素因数の和:21032

約数の個数: 16

約数和(自身を含む): 20161920

約数和(自身を除く): 6196255

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 21001, 105005, 147007, 399019, 735035, 1995095, 2793133, 13965665]

約数ペア:

[(1, 13965665), (5, 2793133), (7, 1995095), (19, 735035), (35, 399019), (95, 147007), (133, 105005), (665, 21001)]