20962825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1293

約数の個数: 24

約数和(自身を含む): 28545048

約数和(自身を除く): 7582223

約数列:

[1, 5, 13, 25, 53, 65, 265, 325, 689, 1217, 1325, 3445, 6085, 15821, 17225, 30425, 64501, 79105, 322505, 395525, 838513, 1612525, 4192565, 20962825]

約数ペア:

[(1, 20962825), (5, 4192565), (13, 1612525), (25, 838513), (53, 395525), (65, 322505), (265, 79105), (325, 64501), (689, 30425), (1217, 17225), (1325, 15821), (3445, 6085)]