251015373

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 422522880

約数和(自身を除く): 171507507

約数列:

[1, 3, 7, 9, 21, 63, 127, 137, 229, 381, 411, 687, 889, 959, 1143, 1233, 1603, 2061, 2667, 2877, 4809, 8001, 8631, 14427, 17399, 29083, 31373, 52197, 87249, 94119, 121793, 156591, 203581, 219611, 261747, 282357, 365379, 610743, 658833, 1096137, 1832229, 1976499, 3984371, 11953113, 27890597, 35859339, 83671791, 251015373]

約数ペア:

[(1, 251015373), (3, 83671791), (7, 35859339), (9, 27890597), (21, 11953113), (63, 3984371), (127, 1976499), (137, 1832229), (229, 1096137), (381, 658833), (411, 610743), (687, 365379), (889, 282357), (959, 261747), (1143, 219611), (1233, 203581), (1603, 156591), (2061, 121793), (2667, 94119), (2877, 87249), (4809, 52197), (8001, 31373), (8631, 29083), (14427, 17399)]