31497921

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38459}}^1$

素因数の和:38485

約数の個数: 24

約数和(自身を含む): 55997760

約数和(自身を除く): 24499839

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 38459, 115377, 269213, 346131, 499967, 807639, 1499901, 2422917, 3499769, 4499703, 10499307, 31497921]

約数ペア:

[(1, 31497921), (3, 10499307), (7, 4499703), (9, 3499769), (13, 2422917), (21, 1499901), (39, 807639), (63, 499967), (91, 346131), (117, 269213), (273, 115377), (819, 38459)]