20781564154

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{11003}}^1\times {\mathrm{72643}}^1$

素因数の和:83661

約数の個数: 16

約数和(自身を含む): 33573732192

約数和(自身を除く): 12792168038

約数列:

[1, 2, 13, 26, 11003, 22006, 72643, 143039, 145286, 286078, 944359, 1888718, 799290929, 1598581858, 10390782077, 20781564154]

約数ペア:

[(1, 20781564154), (2, 10390782077), (13, 1598581858), (26, 799290929), (11003, 1888718), (22006, 944359), (72643, 286078), (143039, 145286)]