21270009

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{18133}}^1$

素因数の和:18176

約数の個数: 16

約数和(自身を含む): 31335552

約数和(自身を除く): 10065543

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 18133, 54399, 308261, 417059, 924783, 1251177, 7090003, 21270009]

約数ペア:

[(1, 21270009), (3, 7090003), (17, 1251177), (23, 924783), (51, 417059), (69, 308261), (391, 54399), (1173, 18133)]