21187962

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 47511360

約数和(自身を除く): 26323398

約数列:

[1, 2, 3, 6, 9, 18, 59, 71, 118, 142, 177, 213, 281, 354, 426, 531, 562, 639, 843, 1062, 1278, 1686, 2529, 4189, 5058, 8378, 12567, 16579, 19951, 25134, 33158, 37701, 39902, 49737, 59853, 75402, 99474, 119706, 149211, 179559, 298422, 359118, 1177109, 2354218, 3531327, 7062654, 10593981, 21187962]

約数ペア:

[(1, 21187962), (2, 10593981), (3, 7062654), (6, 3531327), (9, 2354218), (18, 1177109), (59, 359118), (71, 298422), (118, 179559), (142, 149211), (177, 119706), (213, 99474), (281, 75402), (354, 59853), (426, 49737), (531, 39902), (562, 37701), (639, 33158), (843, 25134), (1062, 19951), (1278, 16579), (1686, 12567), (2529, 8378), (4189, 5058)]