21830427

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{647}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 33156864

約数和(自身を除く): 11326437

約数列:

[1, 3, 9, 23, 69, 163, 207, 489, 647, 1467, 1941, 3749, 5823, 11247, 14881, 33741, 44643, 105461, 133929, 316383, 949149, 2425603, 7276809, 21830427]

約数ペア:

[(1, 21830427), (3, 7276809), (9, 2425603), (23, 949149), (69, 316383), (163, 133929), (207, 105461), (489, 44643), (647, 33741), (1467, 14881), (1941, 11247), (3749, 5823)]