20664982

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{4703}}^1$

素因数の和:4744

約数の個数: 16

約数和(自身を含む): 33586560

約数和(自身を除く): 12921578

約数列:

[1, 2, 13, 26, 169, 338, 2197, 4394, 4703, 9406, 61139, 122278, 794807, 1589614, 10332491, 20664982]

約数ペア:

[(1, 20664982), (2, 10332491), (13, 1589614), (26, 794807), (169, 122278), (338, 61139), (2197, 9406), (4394, 4703)]