18738238

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:336

約数の個数: 24

約数和(自身を含む): 29862000

約数和(自身を除く): 11123762

約数列:

[1, 2, 23, 46, 89, 178, 199, 398, 529, 1058, 2047, 4094, 4577, 9154, 17711, 35422, 47081, 94162, 105271, 210542, 407353, 814706, 9369119, 18738238]

約数ペア:

[(1, 18738238), (2, 9369119), (23, 814706), (46, 407353), (89, 210542), (178, 105271), (199, 94162), (398, 47081), (529, 35422), (1058, 17711), (2047, 9154), (4094, 4577)]