21806223

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{7247}}^1$

素因数の和:7326

約数の個数: 16

約数和(自身を含む): 31311360

約数和(自身を除く): 9505137

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 7247, 21741, 123199, 369597, 427573, 1282719, 7268741, 21806223]

約数ペア:

[(1, 21806223), (3, 7268741), (17, 1282719), (51, 427573), (59, 369597), (177, 123199), (1003, 21741), (3009, 7247)]