20854977

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 32973696

約数和(自身を除く): 12118719

約数列:

[1, 3, 11, 13, 33, 39, 143, 173, 281, 429, 519, 843, 1903, 2249, 3091, 3653, 5709, 6747, 9273, 10959, 24739, 40183, 48613, 74217, 120549, 145839, 534743, 631969, 1604229, 1895907, 6951659, 20854977]

約数ペア:

[(1, 20854977), (3, 6951659), (11, 1895907), (13, 1604229), (33, 631969), (39, 534743), (143, 145839), (173, 120549), (281, 74217), (429, 48613), (519, 40183), (843, 24739), (1903, 10959), (2249, 9273), (3091, 6747), (3653, 5709)]