18827894

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 30477216

約数和(自身を除く): 11649322

約数列:

[1, 2, 37, 43, 61, 74, 86, 97, 122, 194, 1591, 2257, 2623, 3182, 3589, 4171, 4514, 5246, 5917, 7178, 8342, 11834, 97051, 154327, 194102, 218929, 254431, 308654, 437858, 508862, 9413947, 18827894]

約数ペア:

[(1, 18827894), (2, 9413947), (37, 508862), (43, 437858), (61, 308654), (74, 254431), (86, 218929), (97, 194102), (122, 154327), (194, 97051), (1591, 11834), (2257, 8342), (2623, 7178), (3182, 5917), (3589, 5246), (4171, 4514)]