21057426

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89989}}^1$

素因数の和:90010

約数の個数: 24

約数和(自身を含む): 49134540

約数和(自身を除く): 28077114

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 89989, 179978, 269967, 539934, 809901, 1169857, 1619802, 2339714, 3509571, 7019142, 10528713, 21057426]

約数ペア:

[(1, 21057426), (2, 10528713), (3, 7019142), (6, 3509571), (9, 2339714), (13, 1619802), (18, 1169857), (26, 809901), (39, 539934), (78, 269967), (117, 179978), (234, 89989)]