18857284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4139}}^1$

素因数の和:4227

約数の個数: 24

約数和(自身を含む): 35471520

約数和(自身を除く): 16614236

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4139, 4556, 8278, 16556, 70363, 140726, 277313, 281452, 554626, 1109252, 4714321, 9428642, 18857284]

約数ペア:

[(1, 18857284), (2, 9428642), (4, 4714321), (17, 1109252), (34, 554626), (67, 281452), (68, 277313), (134, 140726), (268, 70363), (1139, 16556), (2278, 8278), (4139, 4556)]