21894201

素因数分解:

$3^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{2081}}^1$

素因数の和:2261

約数の個数: 24

約数和(自身を含む): 36376704

約数和(自身を除く): 14482503

約数列:

[1, 3, 7, 9, 21, 63, 167, 501, 1169, 1503, 2081, 3507, 6243, 10521, 14567, 18729, 43701, 131103, 347527, 1042581, 2432689, 3127743, 7298067, 21894201]

約数ペア:

[(1, 21894201), (3, 7298067), (7, 3127743), (9, 2432689), (21, 1042581), (63, 347527), (167, 131103), (501, 43701), (1169, 18729), (1503, 14567), (2081, 10521), (3507, 6243)]