217871511

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{337}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 347404512

約数和(自身を除く): 129533001

約数列:

[1, 3, 11, 13, 33, 39, 121, 137, 143, 337, 363, 411, 429, 1011, 1507, 1573, 1781, 3707, 4381, 4521, 4719, 5343, 11121, 13143, 16577, 19591, 40777, 46169, 48191, 49731, 58773, 122331, 138507, 144573, 215501, 507859, 530101, 600197, 646503, 1523577, 1590303, 1800591, 5586449, 6602167, 16759347, 19806501, 72623837, 217871511]

約数ペア:

[(1, 217871511), (3, 72623837), (11, 19806501), (13, 16759347), (33, 6602167), (39, 5586449), (121, 1800591), (137, 1590303), (143, 1523577), (337, 646503), (363, 600197), (411, 530101), (429, 507859), (1011, 215501), (1507, 144573), (1573, 138507), (1781, 122331), (3707, 58773), (4381, 49731), (4521, 48191), (4719, 46169), (5343, 40777), (11121, 19591), (13143, 16577)]