128529471

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2459}}^1$

素因数の和:2619

約数の個数: 32

約数和(自身を含む): 207820800

約数和(自身を除く): 79291329

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 393, 399, 917, 2459, 2489, 2751, 7377, 7467, 17213, 17423, 46721, 51639, 52269, 140163, 322129, 327047, 966387, 981141, 2254903, 6120451, 6764709, 18361353, 42843157, 128529471]

約数ペア:

[(1, 128529471), (3, 42843157), (7, 18361353), (19, 6764709), (21, 6120451), (57, 2254903), (131, 981141), (133, 966387), (393, 327047), (399, 322129), (917, 140163), (2459, 52269), (2489, 51639), (2751, 46721), (7377, 17423), (7467, 17213)]