25891731

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{18803}}^1$

素因数の和:18832

約数の個数: 20

約数和(自身を含む): 40955112

約数和(自身を除く): 15063381

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 18803, 56409, 169227, 319651, 507681, 958953, 1523043, 2876859, 8630577, 25891731]

約数ペア:

[(1, 25891731), (3, 8630577), (9, 2876859), (17, 1523043), (27, 958953), (51, 507681), (81, 319651), (153, 169227), (459, 56409), (1377, 18803)]