21093897

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{3571}}^1$

素因数の和:3764

約数の個数: 16

約数和(自身を含む): 30862080

約数和(自身を除く): 9768183

約数列:

[1, 3, 11, 33, 179, 537, 1969, 3571, 5907, 10713, 39281, 117843, 639209, 1917627, 7031299, 21093897]

約数ペア:

[(1, 21093897), (3, 7031299), (11, 1917627), (33, 639209), (179, 117843), (537, 39281), (1969, 10713), (3571, 5907)]