18888284

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 33852000

約数和(自身を除く): 14963716

約数列:

[1, 2, 4, 61, 122, 199, 244, 389, 398, 778, 796, 1556, 12139, 23729, 24278, 47458, 48556, 77411, 94916, 154822, 309644, 4722071, 9444142, 18888284]

約数ペア:

[(1, 18888284), (2, 9444142), (4, 4722071), (61, 309644), (122, 154822), (199, 94916), (244, 77411), (389, 48556), (398, 47458), (778, 24278), (796, 23729), (1556, 12139)]