20816536

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{200159}}^1$

素因数の和:200178

約数の個数: 16

約数和(自身を含む): 42033600

約数和(自身を除く): 21217064

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 200159, 400318, 800636, 1601272, 2602067, 5204134, 10408268, 20816536]

約数ペア:

[(1, 20816536), (2, 10408268), (4, 5204134), (8, 2602067), (13, 1601272), (26, 800636), (52, 400318), (104, 200159)]