25778193

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^2$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 43975680

約数和(自身を除く): 18197487

約数列:

[1, 3, 7, 19, 21, 23, 53, 57, 69, 133, 159, 161, 371, 399, 437, 483, 1007, 1113, 1219, 1311, 2809, 3021, 3059, 3657, 7049, 8427, 8533, 9177, 19663, 21147, 23161, 25599, 53371, 58989, 64607, 69483, 160113, 162127, 193821, 373597, 452249, 486381, 1120791, 1227533, 1356747, 3682599, 8592731, 25778193]

約数ペア:

[(1, 25778193), (3, 8592731), (7, 3682599), (19, 1356747), (21, 1227533), (23, 1120791), (53, 486381), (57, 452249), (69, 373597), (133, 193821), (159, 162127), (161, 160113), (371, 69483), (399, 64607), (437, 58989), (483, 53371), (1007, 25599), (1113, 23161), (1219, 21147), (1311, 19663), (2809, 9177), (3021, 8533), (3059, 8427), (3657, 7049)]