19870071

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9613}}^1$

素因数の和:9682

約数の個数: 16

約数和(自身を含む): 29072736

約数和(自身を除く): 9202665

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 9613, 28839, 124969, 374907, 509489, 1528467, 6623357, 19870071]

約数ペア:

[(1, 19870071), (3, 6623357), (13, 1528467), (39, 509489), (53, 374907), (159, 124969), (689, 28839), (2067, 9613)]