21689673

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1\times {\mathrm{439}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 29736960

約数和(自身を除く): 8047287

約数列:

[1, 3, 43, 129, 383, 439, 1149, 1317, 16469, 18877, 49407, 56631, 168137, 504411, 7229891, 21689673]

約数ペア:

[(1, 21689673), (3, 7229891), (43, 504411), (129, 168137), (383, 56631), (439, 49407), (1149, 18877), (1317, 16469)]