21059049843

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59997293}}^1$

素因数の和:59997315

約数の個数: 16

約数和(自身を含む): 33598484640

約数和(自身を除く): 12539434797

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 59997293, 179991879, 539975637, 779964809, 1619926911, 2339894427, 7019683281, 21059049843]

約数ペア:

[(1, 21059049843), (3, 7019683281), (9, 2339894427), (13, 1619926911), (27, 779964809), (39, 539975637), (117, 179991879), (351, 59997293)]