20657572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{601}}^1\times {\mathrm{661}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 39055352

約数和(自身を除く): 18397780

約数列:

[1, 2, 4, 13, 26, 52, 601, 661, 1202, 1322, 2404, 2644, 7813, 8593, 15626, 17186, 31252, 34372, 397261, 794522, 1589044, 5164393, 10328786, 20657572]

約数ペア:

[(1, 20657572), (2, 10328786), (4, 5164393), (13, 1589044), (26, 794522), (52, 397261), (601, 34372), (661, 31252), (1202, 17186), (1322, 15626), (2404, 8593), (2644, 7813)]