21959409

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{1459}}^1$

素因数の和:1664

約数の個数: 16

約数和(自身を含む): 30484800

約数和(自身を除く): 8525391

約数列:

[1, 3, 29, 87, 173, 519, 1459, 4377, 5017, 15051, 42311, 126933, 252407, 757221, 7319803, 21959409]

約数ペア:

[(1, 21959409), (3, 7319803), (29, 757221), (87, 252407), (173, 126933), (519, 42311), (1459, 15051), (4377, 5017)]