21975837

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 33976320

約数和(自身を除く): 12000483

約数列:

[1, 3, 13, 19, 39, 47, 57, 141, 247, 611, 631, 741, 893, 1833, 1893, 2679, 8203, 11609, 11989, 24609, 29657, 34827, 35967, 88971, 155857, 385541, 467571, 563483, 1156623, 1690449, 7325279, 21975837]

約数ペア:

[(1, 21975837), (3, 7325279), (13, 1690449), (19, 1156623), (39, 563483), (47, 467571), (57, 385541), (141, 155857), (247, 88971), (611, 35967), (631, 34827), (741, 29657), (893, 24609), (1833, 11989), (1893, 11609), (2679, 8203)]