20775159

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 30805632

約数和(自身を除く): 10030473

約数列:

[1, 3, 9, 67, 131, 201, 263, 393, 603, 789, 1179, 2367, 8777, 17621, 26331, 34453, 52863, 78993, 103359, 158589, 310077, 2308351, 6925053, 20775159]

約数ペア:

[(1, 20775159), (3, 6925053), (9, 2308351), (67, 310077), (131, 158589), (201, 103359), (263, 78993), (393, 52863), (603, 34453), (789, 26331), (1179, 17621), (2367, 8777)]