18489508

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1153}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 34250720

約数和(自身を除く): 15761212

約数列:

[1, 2, 4, 19, 38, 76, 211, 422, 844, 1153, 2306, 4009, 4612, 8018, 16036, 21907, 43814, 87628, 243283, 486566, 973132, 4622377, 9244754, 18489508]

約数ペア:

[(1, 18489508), (2, 9244754), (4, 4622377), (19, 973132), (38, 486566), (76, 243283), (211, 87628), (422, 43814), (844, 21907), (1153, 16036), (2306, 8018), (4009, 4612)]