21637676

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 17422324

約数列:

[1, 2, 4, 61, 71, 122, 142, 244, 284, 1249, 2498, 4331, 4996, 8662, 17324, 76189, 88679, 152378, 177358, 304756, 354716, 5409419, 10818838, 21637676]

約数ペア:

[(1, 21637676), (2, 10818838), (4, 5409419), (61, 354716), (71, 304756), (122, 177358), (142, 152378), (244, 88679), (284, 76189), (1249, 17324), (2498, 8662), (4331, 4996)]