21252507

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7933}}^1$

素因数の和:8002

約数の個数: 16

約数和(自身を含む): 30466560

約数和(自身を除く): 9214053

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7933, 23799, 150727, 372851, 452181, 1118553, 7084169, 21252507]

約数ペア:

[(1, 21252507), (3, 7084169), (19, 1118553), (47, 452181), (57, 372851), (141, 150727), (893, 23799), (2679, 7933)]