21321147

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{443}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 29069568

約数和(自身を除く): 7748421

約数列:

[1, 3, 61, 183, 263, 443, 789, 1329, 16043, 27023, 48129, 81069, 116509, 349527, 7107049, 21321147]

約数ペア:

[(1, 21321147), (3, 7107049), (61, 349527), (183, 116509), (263, 81069), (443, 48129), (789, 27023), (1329, 16043)]