21302967

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4549}}^1$

素因数の和:4782

約数の個数: 16

約数和(自身を含む): 32614400

約数和(自身を除く): 11311433

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4549, 4683, 13647, 31843, 95529, 1014427, 3043281, 7100989, 21302967]

約数ペア:

[(1, 21302967), (3, 7100989), (7, 3043281), (21, 1014427), (223, 95529), (669, 31843), (1561, 13647), (4549, 4683)]