25008889479

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{137153}}^1$

素因数の和:137639

約数の個数: 32

約数和(自身を含む): 40202580480

約数和(自身を除く): 15193691001

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 457, 1371, 3199, 8683, 9597, 26049, 60781, 137153, 182343, 411459, 960071, 2605907, 2880213, 7817721, 18241349, 54724047, 62678921, 188036763, 438752447, 1190899499, 1316257341, 3572698497, 8336296493, 25008889479]

約数ペア:

[(1, 25008889479), (3, 8336296493), (7, 3572698497), (19, 1316257341), (21, 1190899499), (57, 438752447), (133, 188036763), (399, 62678921), (457, 54724047), (1371, 18241349), (3199, 7817721), (8683, 2880213), (9597, 2605907), (26049, 960071), (60781, 411459), (137153, 182343)]