21806091

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4723}}^1$

素因数の和:4757

約数の個数: 24

約数和(自身を含む): 34390720

約数和(自身を除く): 12584629

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4617, 4723, 14169, 42507, 89737, 127521, 269211, 382563, 807633, 1147689, 2422899, 7268697, 21806091]

約数ペア:

[(1, 21806091), (3, 7268697), (9, 2422899), (19, 1147689), (27, 807633), (57, 382563), (81, 269211), (171, 127521), (243, 89737), (513, 42507), (1539, 14169), (4617, 4723)]